{"id":3554,"date":"2019-06-04T07:47:21","date_gmt":"2019-06-04T07:47:21","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=3554"},"modified":"2020-05-06T05:18:05","modified_gmt":"2020-05-06T05:18:05","slug":"3554-2","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/3554-2\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft"},"content":{"rendered":"

Dung d\u1ecbch c\u1eaft (dung d\u1ecbch l\u00e0m m\u00e1t) l\u00e0 m\u1ed9t lo\u1ea1i ch\u1ea5t l\u1ecfng c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh m\u00e0i v\u00e0 c\u1eaft kim lo\u1ea1i \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n c\u00e1c d\u1ee5ng c\u1ee5 v\u00e0 ph\u00f4i c\u1eaft. Ch\u1ea5t l\u1ecfng c\u1eaft \u0111\u01b0\u1ee3c bao g\u1ed3m nhi\u1ec1u lo\u1ea1i ph\u1ee5 gia si\u00eau ch\u1ee9c n\u0103ng, \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p m\u1ed9t c\u00e1ch khoa h\u1ecdc. N\u00f3 c\u0169ng c\u00f3 hi\u1ec7u su\u1ea5t l\u00e0m m\u00e1t t\u1ed1t, hi\u1ec7u su\u1ea5t b\u00f4i tr\u01a1n, hi\u1ec7u su\u1ea5t ch\u1ed1ng g\u1ec9, lo\u1ea1i b\u1ecf d\u1ea7u v\u00e0 ch\u1ee9c n\u0103ng l\u00e0m s\u1ea1ch, ch\u1ee9c n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1eb7c t\u00ednh pha lo\u00e3ng d\u1ec5 d\u00e0ng. N\u00f3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c nh\u1eefng khuy\u1ebft \u0111i\u1ec3m c\u1ee7a ch\u1ea5t nh\u0169 h\u00f3a g\u1ed1c x\u00e0 ph\u00f2ng truy\u1ec1n th\u1ed1ng nh\u01b0 d\u1ec5 t\u1ea1o m\u00f9i v\u00e0o m\u00f9a h\u00e8, kh\u00f3 pha lo\u00e3ng v\u00e0o m\u00f9a \u0111\u00f4ng v\u00e0 hi\u1ec7u qu\u1ea3 ch\u1ed1ng r\u1ec9 k\u00e9m, v\u00e0 kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng ph\u1ee5 \u0111\u1ed1i v\u1edbi s\u01a1n m\u00e1y ti\u1ec7n. N\u00f3 ph\u00f9 h\u1ee3p cho vi\u1ec7c c\u1eaft v\u00e0 m\u00e0i kim lo\u1ea1i \u0111en v\u00e0 l\u00e0 s\u1ea3n ph\u1ea9m m\u00e0i h\u00e0ng \u0111\u1ea7u hi\u1ec7n nay. Ch\u1ea5t l\u1ecfng c\u1eaft v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi d\u1ea7u x\u00e0 ph\u00f2ng h\u00f3a \u1edf t\u1ea5t c\u1ea3 c\u00e1c ch\u1ec9 s\u1ed1. N\u00f3 c\u00f3 \u0111\u1eb7c t\u00ednh b\u00f4i tr\u01a1n, l\u00e0m m\u00e1t, l\u00e0m s\u1ea1ch, ch\u1ed1ng r\u1ec9 t\u1ed1t v\u00e0 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00f4ng \u0111\u1ed9c h\u1ea1i, kh\u00f4ng m\u00f9i, kh\u00f4ng \u0103n m\u00f2n c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, kh\u00f4ng \u0103n m\u00f2n thi\u1ebft b\u1ecb, kh\u00f4ng \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng, v.v.<\/p>

Ph\u00e1t tri\u1ec3n mang t\u00ednh l\u1ecbch s\u1eed<\/h2>
\"\"<\/figure><\/div>

<\/a><\/p>

Ch\u1ea5t l\u1ecfng c\u1eaft L\u1ecbch s\u1eed s\u1eed d\u1ee5ng ch\u1ea5t l\u1ecfng c\u1eaft c\u1ee7a con ng\u01b0\u1eddi c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb th\u1eddi c\u1ed5 \u0111\u1ea1i. Khi m\u1ecdi ng\u01b0\u1eddi m\u00e0i \u0111\u00e1, \u0111\u1ed3ng v\u00e0 s\u1eaft, h\u1ecd bi\u1ebft r\u1eb1ng t\u01b0\u1edbi n\u01b0\u1edbc c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng. D\u1ea7u \u00f4 liu \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m b\u00e1nh \u0111\u00fac m\u00e1y b\u01a1m piston \u1edf La M\u00e3 c\u1ed5 \u0111\u1ea1i, b\u01a1 v\u00e0 n\u01b0\u1edbc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng \u00e1o gi\u00e1p kim lo\u1ea1i v\u00e0o th\u1ebf k\u1ef7 16. K\u1ec3 t\u1eeb khi John Wilkinson ph\u00e1t tri\u1ec3n m\u1ed9t m\u00e1y doa \u0111\u1ec3 gia c\u00f4ng xi lanh c\u1ee7a \u0111\u1ed9ng c\u01a1 h\u01a1i n\u01b0\u1edbc Watt v\u00e0o n\u0103m 1775, \u1ee9ng d\u1ee5ng c\u1ee7a n\u01b0\u1edbc v\u00e0 d\u1ea7u trong vi\u1ec7c c\u1eaft g\u1ecdt kim lo\u1ea1i \u0111\u00e3 xu\u1ea5t hi\u1ec7n. Sau m\u1ed9t th\u1eddi gian d\u00e0i ph\u00e1t tri\u1ec3n v\u00e0o n\u0103m 1860, c\u00e1c m\u00e1y c\u00f4ng c\u1ee5 kh\u00e1c nhau nh\u01b0 ti\u1ec7n, phay, b\u00e0o, m\u00e0i, gia c\u00f4ng b\u00e1nh r\u0103ng v\u00e0 gia c\u00f4ng ren l\u1ea7n l\u01b0\u1ee3t xu\u1ea5t hi\u1ec7n, \u0111i\u1ec1u n\u00e0y c\u0169ng \u0111\u00e1nh d\u1ea5u s\u1ef1 kh\u1edfi \u0111\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng quy m\u00f4 l\u1edbn c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft.<\/p>

In the 1980s, American scientists began to evaluate cutting fluids. F. W. Taylor discovered and explained the phenomenon and mechanism that the cutting speed can be increased by 30%~40% by using pump to supply sodium carbonate aqueous solution. In view of the fact that the tool material used at that time was carbon tool steel and the main function of cutting fluid was cooling, the term “coolant” was put forward. Since then, cutting fluids have been called cooling lubricants.<\/p>

With the continuous improvement of people’s understanding of cutting fluid and the enrichment of practical experience, it is found that good machined surface can be obtained by injecting oil agent into the cutting area. At first, people used animal and vegetable oils as cutting fluid, but animal and vegetable oils are easy to deteriorate and have a short period of use. At the beginning of the 20th century, people began to extract lubricating oil from crude oil and invented various lubricating additives with excellent performance. After the First World War, the research and use of mineral oil and animal and vegetable oil composite oil began. In 1924, cutting oil containing sulfur and chlorine was patented and applied to heavy cutting, broaching, thread and gear processing.<\/p>

The development of tool materials has promoted the development of cutting fluid. In 1898, high-speed steel was invented, and the cutting speed is 2-4 times higher than before. Cemented carbide was first developed in Germany in 1927. The cutting speed of cemented carbide is 2-5 times higher than that of high-speed steel. With the continuous improvement of cutting temperature, the cooling performance of oil-based cutting fluid cannot fully meet the cutting requirements. At this time, people began to pay more attention to the advantages of water-based cutting fluid. The oil-in-water emulsion was produced in 1915 and became the preferred cutting fluid for heavy cutting in 1920. In 1945, the first oil-free synthetic cutting fluid was developed in the United States. Cimcool Cincinnati Milling Machine Company (later renamed Cincinnati-Mulchrone) took the lead in the development of a worldwide fully synthetic metal cutting fluid and marked the product with a unique pink color. CIMCOOL is revolutionary. In 1945, only pure oil and milk-like emulsifiers were available as cutting fluids.  Because CIMCOOL is a water-based product, its cooling performance is twice that of pure oil. Unlike oil, CIMCOOL has no smoke, no fire hazard, and clean parts after processing. Similar to the emulsified liquid phase, CIMCOOL maintains excellent cooling performance. With the unique chemical synthetic lubricant, its lubrication is developed, allowing higher cutting speed and improving tool life. CIMCOOL shows high resistance to bacterial attack, and its transparency is acceptable to the industry. CIMCOOL is a significant step forward in the field of metalworking fluid technology. Other companies have turned to chemical metalworking fluid to promote the development of cutting fluid technology. With the further development of advanced manufacturing technology and the enhancement of people’s awareness of environmental protection, new requirements have been put forward for cutting fluid technology, which will promote the development of cutting fluid technology to a higher field.<\/p>

Ph\u00e2n lo\u1ea1i ch\u00ednh<\/h2>
\"\"<\/figure><\/div>

<\/a><\/p>

Ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh ch\u1ea5t l\u1ecfng c\u1eaft d\u1ea1ng nh\u0169 t\u01b0\u01a1ng, ch\u1ea5t l\u1ecfng c\u1eaft b\u00e1n t\u1ed5ng h\u1ee3p v\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft t\u1ed5ng h\u1ee3p t\u1ed5ng h\u1ee3p.<\/p>

Vi\u1ec7c ph\u00e2n lo\u1ea1i d\u1ea7u c\u1eaft c\u00f3 th\u1ec3 nh\u0169 h\u00f3a, b\u00e1n t\u1ed5ng h\u1ee3p v\u00e0 t\u1ed5ng h\u1ee3p th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i d\u1ea7u g\u1ed1c trong c\u00e1c s\u1ea3n ph\u1ea9m: d\u1ea7u c\u1eaft c\u00f3 th\u1ec3 nh\u0169 h\u00f3a l\u00e0 d\u1ea7u c\u1eaft h\u00f2a tan trong n\u01b0\u1edbc, ch\u1ec9 s\u1eed d\u1ee5ng d\u1ea7u kho\u00e1ng l\u00e0m d\u1ea7u g\u1ed1c; ch\u1ea5t l\u1ecfng c\u1eaft b\u00e1n t\u1ed5ng h\u1ee3p l\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft h\u00f2a tan trong n\u01b0\u1edbc c\u00f3 ch\u1ee9a c\u1ea3 d\u1ea7u kho\u00e1ng v\u00e0 d\u1ea7u g\u1ed1c t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc; v\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft ho\u00e0n to\u00e0n t\u1ed5ng h\u1ee3p l\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft h\u00f2a tan trong n\u01b0\u1edbc, ch\u1ec9 s\u1eed d\u1ee5ng d\u1ea7u g\u1ed1c t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc (t\u1ee9c l\u00e0 kh\u00f4ng c\u00f3 d\u1ea7u kho\u00e1ng).<\/p>

M\u1ed7i lo\u1ea1i dung d\u1ecbch c\u1eaft s\u1ebd ch\u1ee9a c\u00e1c ch\u1ea5t ph\u1ee5 gia kh\u00e1c nhau ngo\u00e0i d\u1ea7u g\u1ed1c: ch\u1ea5t \u1ee9c ch\u1ebf g\u1ec9, ch\u1ea5t th\u1ee5 \u0111\u1ed9ng \u0103n m\u00f2n kim lo\u1ea1i m\u00e0u, ch\u1ea5t kh\u1eed b\u1ecdt, v.v.<\/p>

M\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t s\u1ebd c\u00f3 ph\u00e2n lo\u1ea1i vi nh\u0169 t\u01b0\u01a1ng; ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 ph\u00e2n lo\u1ea1i gi\u1eefa ch\u1ea5t l\u1ecfng c\u1eaft nh\u0169 t\u01b0\u01a1ng v\u00e0 b\u00e1n t\u1ed5ng h\u1ee3p.<\/p>

Dung d\u1ecbch pha lo\u00e3ng c\u1ee7a nh\u0169 t\u01b0\u01a1ng c\u00f3 m\u00e0u tr\u1eafng s\u1eefa. ch\u1ea5t pha lo\u00e3ng c\u1ee7a dung d\u1ecbch b\u00e1n t\u1ed5ng h\u1ee3p th\u01b0\u1eddng trong m\u1edd, v\u00e0 m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m c\u00f3 m\u00e0u tr\u1eafng s\u1eefa m\u1ed9t ph\u1ea7n; ch\u1ea5t pha lo\u00e3ng c\u1ee7a t\u1ed5ng dung d\u1ecbch t\u1ed5ng h\u1ee3p th\u01b0\u1eddng ho\u00e0n to\u00e0n trong su\u1ed1t, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u01b0\u1edbc ho\u1eb7c c\u00f3 m\u00e0u nh\u1eb9.<\/p>

C\u00f4ng d\u1ee5ng ch\u00ednh<\/h2>

B\u00f4i tr\u01a1n g\u1ea5p<\/h3>

Vi\u1ec7c b\u00f4i tr\u01a1n ch\u1ea5t l\u1ecfng c\u1eaft kim lo\u1ea1i (g\u1ecdi t\u1eaft l\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft) trong qu\u00e1 tr\u00ecnh c\u1eaft c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ma s\u00e1t gi\u1eefa m\u1eb7t c\u00e0o v\u00e0 phoi, m\u1eb7t s\u01b0\u1eddn v\u00e0 b\u1ec1 m\u1eb7t gia c\u00f4ng, v\u00e0 t\u1ea1o th\u00e0nh m\u1ed9t ph\u1ea7n c\u1ee7a m\u00e0ng b\u00f4i tr\u01a1n, do \u0111\u00f3 gi\u1ea3m ti\u00eau th\u1ee5 c\u1eaft l\u1ef1c, ma s\u00e1t v\u00e0 c\u00f4ng su\u1ea5t, gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 m\u00f2n d\u1ee5ng c\u1ee5 c\u1ee7a ph\u1ea7n ma s\u00e1t gi\u1eefa d\u1ee5ng c\u1ee5 v\u00e0 ph\u00f4i ph\u00f4i, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1eaft v\u1eadt li\u1ec7u ph\u00f4i. Trong qu\u00e1 tr\u00ecnh m\u00e0i, sau khi b\u1ed5 sung dung d\u1ecbch m\u00e0i, dung d\u1ecbch m\u00e0i s\u1ebd ng\u1ea5m v\u00e0o h\u1ea1t \u0111\u00e1 m\u00e0i v\u00e0 c\u00e1c m\u1ea3nh v\u1ee5n c\u1ee7a \u0111\u00e1 m\u00e0i t\u1ea1o th\u00e0nh m\u00e0ng b\u00f4i tr\u01a1n, l\u00e0m gi\u1ea3m ma s\u00e1t gi\u1eefa c\u00e1c b\u1ec1 m\u1eb7t, ng\u0103n kh\u00f4ng cho l\u01b0\u1ee1i c\u1eaft m\u00e0i m\u00f2n v\u00e0 b\u00e1m v\u00e0o phoi. , do \u0111\u00f3 l\u00e0m gi\u1ea3m l\u1ef1c m\u00e0i v\u00e0 nhi\u1ec7t ma s\u00e1t, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u1ee7a \u0111\u00e1 m\u00e0i v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i.<\/p>

L\u00e0m m\u00e1t g\u1ea5p<\/h3>

Hi\u1ec7u qu\u1ea3 l\u00e0m m\u00e1t c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft l\u00e0 th\u00f4ng qua s\u1ef1 \u0111\u1ed1i l\u01b0u v\u00e0 h\u00f3a h\u01a1i gi\u1eefa d\u1ee5ng c\u1ee5 c\u1eaft (ho\u1eb7c \u0111\u00e1 m\u00e0i), phoi v\u00e0 ph\u00f4i \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng b\u1eb1ng c\u00e1ch c\u1eaft, gi\u00fap l\u1ea5y nhi\u1ec7t c\u1eaft ra kh\u1ecfi d\u1ee5ng c\u1ee5 v\u00e0 ph\u00f4i, do \u0111\u00f3 c\u00f3 hi\u1ec7u qu\u1ea3 gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1eaft, gi\u1ea3m bi\u1ebfn d\u1ea1ng nhi\u1ec7t c\u1ee7a ph\u00f4i v\u00e0 c\u00f4ng c\u1ee5, duy tr\u00ec \u0111\u1ed9 c\u1ee9ng c\u1ee7a d\u1ee5ng c\u1ee5, c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c gia c\u00f4ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a d\u1ee5ng c\u1ee5. Hi\u1ec7u su\u1ea5t l\u00e0m m\u00e1t c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft c\u00f3 li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 d\u1eabn nhi\u1ec7t, nhi\u1ec7t ri\u00eang, nhi\u1ec7t h\u00f3a h\u01a1i v\u00e0 \u0111\u1ed9 nh\u1edbt (ho\u1eb7c t\u00ednh l\u01b0u \u0111\u1ed9ng) c\u1ee7a n\u00f3. H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t v\u00e0 nhi\u1ec7t dung ri\u00eang c\u1ee7a n\u01b0\u1edbc cao h\u01a1n d\u1ea7u n\u00ean hi\u1ec7u su\u1ea5t l\u00e0m m\u00e1t c\u1ee7a n\u01b0\u1edbc t\u1ed1t h\u01a1n d\u1ea7u.<\/p>

L\u00e0m s\u1ea1ch g\u1ea5p<\/h3>

Trong qu\u00e1 tr\u00ecnh c\u1eaft kim lo\u1ea1i, ch\u1ea5t l\u1ecfng c\u1eaft l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u00f3 t\u00e1c d\u1ee5ng l\u00e0m s\u1ea1ch t\u1ed1t. Lo\u1ea1i b\u1ecf phoi sinh ra, phoi m\u00e0i m\u00f2n, b\u1ed9t s\u1eaft, d\u1ea7u v\u00e0 h\u1ea1t c\u00e1t, ng\u0103n ng\u1eeba s\u1ef1 nhi\u1ec5m b\u1ea9n c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5, ph\u00f4i v\u00e0 d\u1ee5ng c\u1ee5, \u0111\u1ed3ng th\u1eddi gi\u1eef cho l\u01b0\u1ee1i c\u1eaft c\u1ee7a d\u1ee5ng c\u1ee5 ho\u1eb7c b\u00e1nh m\u00e0i lu\u00f4n s\u1eafc b\u00e9n m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 c\u1eaft. \u0110\u1ed1i v\u1edbi d\u1ea7u c\u1eaft g\u1ecdt g\u1ed1c d\u1ea7u, \u0111\u1ed9 nh\u1edbt c\u00e0ng th\u1ea5p th\u00ec kh\u1ea3 n\u0103ng t\u1ea9y r\u1eeda c\u00e0ng m\u1ea1nh. \u0110\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi d\u1ea7u c\u1eaft g\u1ecdt c\u00f3 ch\u1ee9a d\u1ea7u h\u1ecfa, d\u1ea7u diesel v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n nh\u1eb9 kh\u00e1c th\u00ec kh\u1ea3 n\u0103ng th\u1ea9m th\u1ea5u v\u00e0 l\u00e0m s\u1ea1ch c\u00e0ng t\u1ed1t. Dung d\u1ecbch c\u1eaft g\u1ed1c n\u01b0\u1edbc c\u00f3 ch\u1ee9a ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t c\u00f3 t\u00e1c d\u1ee5ng t\u1ea9y r\u1eeda t\u1ed1t h\u01a1n v\u00ec c\u00f3 th\u1ec3 t\u1ea1o m\u00e0ng h\u1ea5p ph\u1ee5 tr\u00ean b\u1ec1 m\u1eb7t, ng\u0103n c\u00e1c h\u1ea1t v\u00e0 c\u1eb7n b\u00e1m v\u00e0o ph\u00f4i, d\u1ee5ng c\u1ee5 v\u00e0 \u0111\u00e1 m\u00e0i. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u00f3 th\u1ec3 th\u00e2m nh\u1eadp v\u00e0o b\u1ec1 m\u1eb7t ph\u00e2n c\u00e1ch gi\u1eefa c\u00e1c h\u1ea1t v\u00e0 b\u00f9n, t\u00e1ch n\u00f3 ra kh\u1ecfi b\u1ec1 m\u1eb7t ph\u00e2n c\u00e1ch, mang n\u00f3 \u0111i c\u00f9ng v\u1edbi ch\u1ea5t l\u1ecfng c\u1eaft v\u00e0 gi\u1eef cho b\u1ec1 m\u1eb7t ph\u00e2n c\u00e1ch s\u1ea1ch s\u1ebd.<\/p>

G\u1ea5p ch\u1ed1ng g\u1ec9<\/h3>

Trong qu\u00e1 tr\u00ecnh c\u1eaft kim lo\u1ea1i, ph\u00f4i s\u1ebd b\u1ecb \u0103n m\u00f2n do ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u01b0 xi m\u0103ng \u0111\u01b0\u1ee3c t\u1ea1o ra do s\u1ef1 ph\u00e2n h\u1ee7y ho\u1eb7c oxy h\u00f3a c\u1ee7a m\u00f4i tr\u01b0\u1eddng m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ea5t l\u1ecfng c\u1eaft, v\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y c\u00f4ng c\u1ee5 ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t l\u1ecfng c\u1eaft s\u1ebd b\u1ecb \u0103n m\u00f2n t\u01b0\u01a1ng \u1ee9ng. Ngo\u00e0i ra, khi ph\u00f4i \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n t\u1ea1m th\u1eddi sau khi gia c\u00f4ng ho\u1eb7c trong qu\u00e1 tr\u00ecnh lu\u00e2n chuy\u1ec3n gi\u1eefa c\u00e1c quy tr\u00ecnh l\u00e0m vi\u1ec7c, dung d\u1ecbch c\u1eaft c\u0169ng ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 \u0103n m\u00f2n kim lo\u1ea1i do m\u00f4i tr\u01b0\u1eddng v\u00e0 dung d\u1ecbch c\u1eaft c\u00f2n l\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00f9n v\u00e0 c\u00e1c ch\u1ea5t \u0103n m\u00f2n kh\u00e1c. \u0110\u1eb7c bi\u1ec7t trong m\u00f9a m\u01b0a v\u00e0 \u1ea9m \u01b0\u1edbt \u1edf mi\u1ec1n nam Trung Qu\u1ed1c, c\u1ea7n ph\u1ea3i ch\u00fa \u00fd nhi\u1ec1u h\u01a1n \u0111\u1ebfn c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng ch\u1ed1ng r\u1ec9 s\u00e9t gi\u1eefa c\u00e1c qu\u00e1 tr\u00ecnh.<\/p>

G\u1ea5p nh\u1eefng ng\u01b0\u1eddi kh\u00e1c<\/h3>

Ngo\u00e0i 4 ch\u1ee9c n\u0103ng tr\u00ean, dung d\u1ecbch c\u1eaft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u1ea7n c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u1ed1t, kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft t\u1ee7a hay ph\u00e2n t\u1ea7ng, k\u1ebft t\u1ee7a d\u1ea7u, k\u1ebft t\u1ee7a x\u00e0 ph\u00f2ng v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng l\u00e3o h\u00f3a trong qu\u00e1 tr\u00ecnh b\u1ea3o qu\u1ea3n v\u00e0 s\u1eed d\u1ee5ng. N\u00f3 c\u00f3 s\u1ee9c \u0111\u1ec1 kh\u00e1ng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi vi khu\u1ea9n v\u00e0 n\u1ea5m, kh\u00f4ng d\u1ec5 \u0111\u1ec3 n\u1ea5m ph\u00e1t tri\u1ec3n v\u00e0 ph\u00e2n h\u1ee7y sinh h\u1ecdc d\u1eabn \u0111\u1ebfn m\u00f9i h\u00f4i v\u00e0 h\u01b0 h\u1ecfng. Kh\u00f4ng l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u01a1n, kh\u00f4ng g\u00e2y h\u1ea1i cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, kh\u00f4ng c\u00f3 m\u00f9i kh\u00f3 ch\u1ecbu. Kh\u00f4ng c\u00f3 kh\u00f3i, s\u01b0\u01a1ng m\u00f9 ho\u1eb7c \u00edt kh\u00f3i trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng. D\u1ec5 d\u00e0ng thu h\u1ed3i, \u00edt \u00f4 nhi\u1ec5m v\u00e0 d\u1ec5 d\u00e0ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i th\u1ea3i ra. Sau khi x\u1eed l\u00fd \u0111\u1ea1t quy chu\u1ea9n qu\u1ed1c gia v\u1ec1 x\u1ea3 n\u01b0\u1edbc th\u1ea3i c\u00f4ng nghi\u1ec7p.<\/p>

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1ea5t l\u1ecfng c\u1eaft<\/h2>
\"\"<\/figure><\/div>

Ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u c\u00f3 kh\u1ea3 n\u0103ng b\u00f4i tr\u01a1n t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3 l\u00e0m m\u00e1t k\u00e9m. Hi\u1ec7u su\u1ea5t b\u00f4i tr\u01a1n c\u1ee7a d\u1ea7u c\u1eaft g\u1ed1c n\u01b0\u1edbc v\u00e0 d\u1ea7u c\u1eaft t\u01b0\u01a1ng \u0111\u1ed1i k\u00e9m, v\u00e0 hi\u1ec7u qu\u1ea3 l\u00e0m m\u00e1t t\u1ed1t h\u01a1n. Qu\u00e1 tr\u00ecnh c\u1eaft ch\u1eadm c\u1ea7n c\u00f3 t\u00ednh b\u00f4i tr\u01a1n m\u1ea1nh c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft. N\u00f3i chung, d\u1ea7u c\u1eaft g\u1ecdt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi t\u1ed1c \u0111\u1ed9 c\u1eaft nh\u1ecf h\u01a1n 30 m \/ ph\u00fat.<\/p>

D\u1ea7u c\u1eaft c\u00f3 ch\u1ee9a ph\u1ee5 gia c\u1ef1c \u00e1p c\u00f3 hi\u1ec7u qu\u1ea3 khi t\u1ed1c \u0111\u1ed9 c\u1eaft kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 60 m \/ ph\u00fat \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 v\u1eadt li\u1ec7u n\u00e0o. Trong qu\u00e1 tr\u00ecnh c\u1eaft t\u1ed1c \u0111\u1ed9 cao, do nhi\u1ec7t tr\u1ecb cao v\u00e0 hi\u1ec7u \u1ee9ng truy\u1ec1n nhi\u1ec7t k\u00e9m c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u, nhi\u1ec7t \u0111\u1ed9 trong khu v\u1ef1c c\u1eaft s\u1ebd qu\u00e1 cao, d\u1eabn \u0111\u1ebfn kh\u00f3i v\u00e0 l\u1eeda trong d\u1ea7u c\u1eaft, v\u00e0 do Nhi\u1ec7t \u0111\u1ed9 ph\u00f4i qu\u00e1 cao s\u1ebd x\u1ea3y ra bi\u1ebfn d\u1ea1ng nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c gia c\u00f4ng ph\u00f4i, do \u0111\u00f3 th\u01b0\u1eddng d\u00f9ng dung d\u1ecbch c\u1eaft g\u1ed1c n\u01b0\u1edbc.<\/p>

Nh\u0169 t\u01b0\u01a1ng k\u1ebft h\u1ee3p t\u00ednh n\u0103ng b\u00f4i tr\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 c\u1ee7a d\u1ea7u v\u1edbi kh\u1ea3 n\u0103ng l\u00e0m m\u00e1t tuy\u1ec7t v\u1eddi c\u1ee7a n\u01b0\u1edbc, \u0111\u1ed3ng th\u1eddi c\u00f3 hi\u1ec7u su\u1ea5t b\u00f4i tr\u01a1n v\u00e0 l\u00e0m m\u00e1t t\u1ed1t, v\u00ec v\u1eady n\u00f3 r\u1ea5t hi\u1ec7u qu\u1ea3 cho qu\u00e1 tr\u00ecnh c\u1eaft kim lo\u1ea1i t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u00e1p su\u1ea5t th\u1ea5p t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t. So v\u1edbi ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u, \u01b0u \u0111i\u1ec3m c\u1ee7a ch\u1ea5t nh\u0169 h\u00f3a l\u00e0 t\u1ea3n nhi\u1ec7t l\u1edbn h\u01a1n, \u0111\u1ed9 s\u1ea1ch, t\u00ednh kinh t\u1ebf do pha lo\u00e3ng n\u01b0\u1edbc mang l\u1ea1i, v\u00e0 s\u1ee9c kh\u1ecfe v\u00e0 s\u1ef1 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh, khi\u1ebfn h\u1ecd h\u00e0i l\u00f2ng khi s\u1eed d\u1ee5ng. Trong th\u1ef1c t\u1ebf, ngo\u00e0i c\u00e1c v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t kh\u00f3, ch\u1ea5t nh\u0169 h\u00f3a c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho h\u1ea7u h\u1ebft c\u00e1c qu\u00e1 tr\u00ecnh c\u1eaft t\u1ea3i nh\u1eb9 v\u00e0 trung b\u00ecnh v\u00e0 h\u1ea7u h\u1ebft c\u00e1c gia c\u00f4ng t\u1ea3i n\u1eb7ng. Ch\u1ea5t nh\u0169 h\u00f3a c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c qu\u00e1 tr\u00ecnh m\u00e0i ngo\u1ea1i tr\u1eeb m\u00e0i ren, m\u00e0i r\u00e3nh v\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh m\u00e0i ph\u1ee9c t\u1ea1p kh\u00e1c. Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ch\u1ea5t nh\u0169 h\u00f3a l\u00e0 d\u1ec5 d\u00e0ng cho vi khu\u1ea9n v\u00e0 n\u1ea5m m\u1ed1c sinh s\u00f4i v\u00e0 l\u00e0m cho c\u00e1c th\u00e0nh ph\u1ea7n h\u1eefu hi\u1ec7u c\u1ee7a ch\u1ea5t nh\u0169 h\u00f3a sinh ra m\u00f9i v\u00e0 ph\u00e2n h\u1ee7y h\u00f3a h\u1ecdc. S\u1ef1 suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng, do \u0111\u00f3 th\u01b0\u1eddng n\u00ean \u0111\u01b0\u1ee3c th\u00eam v\u00e0o c\u00e1c ch\u1ea5t di\u1ec7t n\u1ea5m h\u1eefu c\u01a1 \u0111\u1ed9c h\u1ea1i.<\/p>

\u01afu \u0111i\u1ec3m c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc l\u00e0 t\u00ednh kinh t\u1ebf, t\u1ea3n nhi\u1ec7t nhanh, \u0111\u1ed9 s\u1ea1ch m\u1ea1nh v\u00e0 kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb ph\u00f4i tuy\u1ec7t v\u1eddi. N\u00f3 r\u1ea5t d\u1ec5 d\u00e0ng \u0111\u1ec3 ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc x\u1eed l\u00fd. T\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng tham nh\u0169ng c\u1ee7a n\u00f3 t\u1ed1t h\u01a1n so v\u1edbi ch\u1ea5t l\u1ecfng \u0111\u01b0\u1ee3c nh\u0169 t\u01b0\u01a1ng h\u00f3a. Vi\u1ec7c b\u00f4i tr\u01a1n k\u00e9m s\u1ebd g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng b\u00e1m d\u00ednh v\u00e0 m\u00e0i m\u00f2n c\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5. H\u01a1n n\u1eefa, c\u00e1c ch\u1ea5t c\u1eb7n d\u00ednh do qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p h\u00f3a h\u1ecdc \u0111\u1ec3 l\u1ea1i s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y m\u00f3c v\u00e0 s\u1ebd g\u00e2y r\u1ec9 s\u00e9t tr\u00ean b\u1ec1 m\u1eb7t ch\u1ed3ng l\u00ean nhau c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y.<\/p>

N\u00f3i chung, ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc n\u00ean \u0111\u01b0\u1ee3c ch\u1ecdn trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p sau:<\/p>

1. Nguy c\u01a1 ch\u00e1y ti\u1ec1m \u1ea9n c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u;<\/p>

2. T\u1ed1c \u0111\u1ed9 cao v\u00e0 c\u1eaft ti\u1ebfn dao l\u1edbn l\u00e0m cho khu v\u1ef1c c\u1eaft v\u01b0\u1ee3t qu\u00e1 nhi\u1ec7t \u0111\u1ed9 cao, kh\u00f3i d\u1eef d\u1ed9i v\u00e0 c\u00f3 nguy c\u01a1 h\u1ecfa ho\u1ea1n.<\/p>

3. Xem x\u00e9t qu\u00e1 tr\u00ecnh c\u1ee7a c\u00e1i tr\u01b0\u1edbc v\u00e0 c\u00e1i sau, c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc.<\/p>

4.Hy v\u1ecdng gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m v\u00e0 b\u1ea9n xung quanh m\u00e1y c\u00f4ng c\u1ee5 do d\u1ea7u b\u1eafn ra, b\u1ea3o v\u1ec7 v\u00e0 khu\u1ebfch t\u00e1n s\u01b0\u01a1ng m\u00f9 d\u1ea7u, \u0111\u1ec3 gi\u1eef cho m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh s\u1ea1ch s\u1ebd.<\/p>

X\u00e9t v\u1ec1 gi\u00e1 c\u1ea3, dung d\u1ecbch c\u1eaft g\u1ed1c n\u01b0\u1edbc n\u00f3i chung c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng v\u00e0 gi\u1ea3m \u0111\u00e1ng k\u1ec3 gi\u00e1 th\u00e0nh dung d\u1ecbch c\u1eaft khi y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a m\u1ed9t s\u1ed1 v\u1eadt li\u1ec7u d\u1ec5 gia c\u00f4ng kh\u00f4ng cao.<\/p>

Khi \u0111\u1ed9 b\u1ec1n c\u1ee7a d\u1ee5ng c\u1ee5 c\u1eaft chi\u1ebfm t\u1ef7 tr\u1ecdng l\u1edbn trong t\u00ednh kinh t\u1ebf c\u1ee7a qu\u00e1 tr\u00ecnh c\u1eaft (nh\u01b0 gi\u00e1 d\u1ee5ng c\u1ee5 c\u1eaft \u0111\u1eaft, m\u00e0i d\u1ee5ng c\u1ee5 kh\u00f3, th\u1eddi gian h\u1ed7 tr\u1ee3 x\u1ebfp d\u1ee1 l\u00e2u) th\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c cao c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5 l\u00e0 ho\u00e0n to\u00e0n kh\u00f4ng. cho ph\u00e9p n\u01b0\u1edbc tr\u1ed9n v\u00e0o (\u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n), s\u1ef1 th\u00f4ng \u0111\u1ed3ng d\u1ec5 d\u00e0ng c\u1ee7a h\u1ec7 th\u1ed1ng b\u00f4i tr\u01a1n v\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t c\u1ee7a m\u00e1y c\u00f4ng c\u1ee5, c\u0169ng nh\u01b0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb v\u00e0 \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd ch\u1ea5t l\u1ecfng th\u1ea3i. Ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u n\u00ean \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>

Ph\u1ea1m vi \u00e1p d\u1ee5ng<\/h2>

Th\u00e9p c\u00f4ng c\u1ee5 g\u1ea5p<\/h3>

Its heat resistance temperature is about 200 – 300 C. It can only be used for cutting general materials and will lose hardness at high temperature. Because of the poor heat resistance of this kind of tool, the cooling effect of coolant is required to be better, and it is generally appropriate to use an emulsifier.<\/p>

G\u1ea5p th\u00e9p t\u1ed1c \u0111\u1ed9 cao<\/h3>

V\u1eadt li\u1ec7u n\u00e0y l\u00e0 th\u00e9p h\u1ee3p kim cao c\u1ea5p d\u1ef1a tr\u00ean crom, niken, vonfram, molypden v\u00e0 vanadi (m\u1ed9t s\u1ed1 c\u00f2n ch\u1ee9a nh\u00f4m). Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a n\u00f3 r\u00f5 r\u00e0ng l\u00e0 cao h\u01a1n so v\u1edbi th\u00e9p c\u00f4ng c\u1ee5, v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a cho ph\u00e9p c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 600 C. So v\u1edbi c\u00e1c kim lo\u1ea1i v\u00e0 g\u1ed1m s\u1ee9 ch\u1ecbu nhi\u1ec7t cao kh\u00e1c, th\u00e9p t\u1ed1c \u0111\u1ed9 cao c\u00f3 m\u1ed9t lo\u1ea1t c\u00e1c \u01b0u \u0111i\u1ec3m, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed9 d\u1ebbo dai cao, ph\u00f9 h\u1ee3p v\u1edbi ph\u00f4i h\u00ecnh h\u1ecdc ph\u1ee9c t\u1ea1p v\u00e0 c\u1eaft li\u00ean t\u1ee5c, v\u00e0 th\u00e9p t\u1ed1c \u0111\u1ed9 cao c\u00f3 kh\u1ea3 n\u0103ng gia c\u00f4ng t\u1ed1t v\u00e0 d\u1ec5 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn \u1edf m\u1ee9c gi\u00e1. Ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u ho\u1eb7c ch\u1ea5t nh\u0169 h\u00f3a \u0111\u01b0\u1ee3c khuy\u00ean d\u00f9ng \u0111\u1ec3 c\u1eaft t\u1ed1c \u0111\u1ed9 th\u1ea5p v\u00e0 trung b\u00ecnh v\u1edbi c\u00e1c d\u1ee5ng c\u1ee5 th\u00e9p t\u1ed1c \u0111\u1ed9 cao. Trong qu\u00e1 tr\u00ecnh c\u1eaft t\u1ed1c \u0111\u1ed9 cao, ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc l\u00e0 ph\u00f9 h\u1ee3p v\u00ec nhi\u1ec7t tr\u1ecb cao c\u1ee7a n\u00f3. N\u1ebfu s\u1eed d\u1ee5ng dung d\u1ecbch c\u1eaft g\u1ed1c d\u1ea7u s\u1ebd t\u1ea1o ra nhi\u1ec1u s\u01b0\u01a1ng d\u1ea7u, g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng, d\u1ec5 g\u00e2y ch\u00e1y ph\u00f4i, gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng gia c\u00f4ng v\u00e0 t\u0103ng \u0111\u1ed9 m\u00f2n c\u1ee7a dao.<\/p>

Cacbua xi m\u0103ng g\u1ea5p n\u1ebfp<\/h3>

Cacbua xi m\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho d\u1ee5ng c\u1ee5 c\u1eaft bao g\u1ed3m cacbua vonfram (WC), cacbua titan (TiC), cacbua tantali (TaC) v\u00e0 coban 5-10%. \u0110\u1ed9 c\u1ee9ng c\u1ee7a n\u00f3 cao h\u01a1n nhi\u1ec1u so v\u1edbi th\u00e9p t\u1ed1c \u0111\u1ed9 cao. Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c t\u1ed1i \u0111a cho ph\u00e9p c\u00f3 th\u1ec3 \u0111\u1ea1t 1000 C. C\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ef1c t\u1ed1t v\u00e0 c\u00f3 th\u1ec3 gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng li\u00ean k\u1ebft gi\u1eefa c\u00e1c phoi khi gia c\u00f4ng v\u1eadt li\u1ec7u th\u00e9p. Khi ch\u1ecdn ch\u1ea5t l\u1ecfng c\u1eaft, c\u1ea7n xem x\u00e9t \u0111\u1ed9 nh\u1ea1y c\u1ee7a cacbua xi m\u0103ng v\u1edbi nhi\u1ec7t \u0111\u1ed9t ng\u1ed9t, \u0111\u1ec3 d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng \u0111\u1ec1u nh\u1ea5t c\u00f3 th\u1ec3, n\u1ebfu kh\u00f4ng, l\u01b0\u1ee1i c\u1eaft s\u1ebd b\u1ecb x\u1eb9p. C\u1eaft kh\u00f4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh gia c\u00f4ng v\u1eadt li\u1ec7u n\u00f3i chung, nh\u01b0ng trong c\u1eaft kh\u00f4, nhi\u1ec7t \u0111\u1ed9 t\u0103ng c\u1ee7a ph\u00f4i cao h\u01a1n l\u00e0m cho ph\u00f4i d\u1ec5 b\u1ecb bi\u1ebfn d\u1ea1ng nhi\u1ec7t v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c gia c\u00f4ng c\u1ee7a ph\u00f4i. H\u01a1n n\u1eefa, c\u1eaft m\u00e0 kh\u00f4ng c\u00f3 ch\u1ea5t b\u00f4i tr\u01a1n c\u00f3 th\u1ec3 l\u00e0m t\u0103ng ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n d\u1ee5ng c\u1ee5 do kh\u1ea3 n\u0103ng ch\u1ed1ng c\u1eaft cao. D\u1ee5ng c\u1ee5 c\u1eaft cacbua xi m\u0103ng r\u1ea5t \u0111\u1eaft ti\u1ec1n, v\u00ec v\u1eady t\u1eeb quan \u0111i\u1ec3m kinh t\u1ebf, c\u1eaft kh\u00f4 c\u0169ng kh\u00f4ng kinh t\u1ebf. Khi ch\u1ecdn ch\u1ea5t l\u1ecfng c\u1eaft, t\u00ednh d\u1eabn nhi\u1ec7t c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u n\u00f3i chung l\u00e0 k\u00e9m, do \u0111\u00f3 nguy c\u01a1 l\u00e0m m\u00e1t \u0111\u1ed9t ng\u1ed9t d\u1ee5ng c\u1ee5 nh\u1ecf h\u01a1n so v\u1edbi ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc, do \u0111\u00f3, ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c d\u1ea7u c\u00f3 ch\u1ee9a ph\u1ee5 gia ch\u1ed1ng m\u00e0i m\u00f2n n\u00f3i chung l\u00e0 ph\u00f9 h\u1ee3p. . Khi c\u1eaft b\u1eb1ng dung d\u1ecbch l\u00e0m m\u00e1t, c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn \u0111\u1ed9 ngu\u1ed9i \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a d\u1ee5ng c\u1ee5. Tr\u01b0\u1edbc khi c\u1eaft, t\u1ed1t h\u01a1n l\u00e0 s\u1eed d\u1ee5ng dung d\u1ecbch l\u00e0m m\u00e1t tr\u01b0\u1edbc \u0111\u1ec3 l\u00e0m m\u00e1t d\u1ee5ng c\u1ee5. \u0110\u1ed1i v\u1edbi qu\u00e1 tr\u00ecnh c\u1eaft t\u1ed1c \u0111\u1ed9 cao, khu v\u1ef1c c\u1eaft n\u00ean \u0111\u01b0\u1ee3c phun ch\u1ea5t l\u1ecfng c\u1eaft c\u00f3 l\u01b0u l\u01b0\u1ee3ng l\u1edbn \u0111\u1ec3 tr\u00e1nh s\u1ef1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u nhi\u1ec7t c\u1ee7a d\u1ee5ng c\u1ee5 v\u00e0 s\u1ef1 s\u1ee5p \u0111\u1ed5 c\u1ea1nh v\u00e0 \u0111\u1ec3 gi\u1ea3m \u00f4 nhi\u1ec5m mu\u1ed9i than do bay h\u01a1i do nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao.<\/p>

G\u1ed1m g\u1ea5p<\/h3>

Alumina, kim lo\u1ea1i v\u00e0 cacbua \u0111\u01b0\u1ee3c thi\u00eau k\u1ebft \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u n\u00e0y \u1edf nhi\u1ec7t \u0111\u1ed9 cao t\u1ed1t h\u01a1n so v\u1edbi cacbua xi m\u0103ng. C\u1eaft kh\u00f4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, nh\u01b0ng ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m m\u00e1t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 tr\u00e1nh nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao.<\/p>

G\u1ea5p kim c\u01b0\u01a1ng<\/h3>

N\u00f3 c\u00f3 \u0111\u1ed9 c\u1ee9ng r\u1ea5t cao v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1eaft. \u0110\u1ec3 tr\u00e1nh nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, ch\u1ea5t l\u1ecfng c\u1eaft g\u1ed1c n\u01b0\u1edbc \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, gi\u1ed1ng nh\u01b0 g\u1ed1m s\u1ee9.<\/p><\/div>","protected":false},"excerpt":{"rendered":"

Cutting fluid (coolant) is a kind of industrial liquid used in metal cutting and grinding process to cool and lubricate cutting tools and workpieces. Cutting fluid is composed of a variety of super functional additives, which are scientifically combined. It also has good cooling performance, lubrication performance, rust-proof performance, oil removal, and cleaning function, anti-corrosion…<\/p>","protected":false},"author":2,"featured_media":19340,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-3554","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cutting-tools-weekly"],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/06\/1-2.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=3554"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3554\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19340"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=3554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=3554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=3554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}