欧美人妻精品一区二区三区99,中文字幕日韩精品内射,精品国产综合成人亚洲区,久久香蕉国产线熟妇人妻

What is carbide?

carbide?is an alloy material made through powder metallurgy process, consisting of hard compounds of refractory metals and a binding metal. carbides exhibit excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. Particularly noteworthy are their high hardness and wear resistance, which remain largely unchanged even at temperatures as high as 500°C and maintain significant hardness at 1000°C.

carbides are widely used as cutting tool materials, including turning tools, milling cutters, planers, drill bits, boring tools, etc. They are employed for machining a variety of materials, including cast iron, non-ferrous metals, plastics, synthetic fibers, graphite, glass, stone, and common steel. Additionally, carbides can be utilized for cutting challenging materials like heat-resistant steel, stainless steel, high manganese steel, and tool steel.

?

What is metal ceramic?

Metal ceramic is a composite material composed of ceramic and metal. It is defined by the ASTM (American Society for Testing and Materials) committee as a heterogeneous composite material consisting of metal or alloy and one or more ceramic phases, where the latter typically constitutes 15% to 85% by volume. Importantly, at the preparation temperature, there is minimal solubility between the metal and ceramic phases. In a narrow sense, metal ceramics refer to a category of materials within composite materials where both metal and ceramic phases have interfaces in three-dimensional space.

Composition of metal ceramic

Metal ceramics are created by adding metal powder to the clay used in ceramic production, allowing the ceramic to withstand high temperatures without becoming easily breakable. Metal matrix metal ceramics, also known as dispersion-strengthened materials, are produced by adding oxide fine powders to a metal matrix. Examples include sintered alumina (aluminum-alumina), sintered beryllium (beryllium-beryllium oxide), TD nickel (nickel-thorium oxide), and others. These are composite materials composed of one or more ceramic phases and metal or alloy phases.

In a broader sense, metal ceramics also encompass refractory compound alloys, carbides, and metal-bonded diamond tool materials. The ceramic phase in metal ceramics consists of oxides or refractory compounds with high melting points and high hardness, while the metal phase primarily consists of transition elements (iron, cobalt, nickel, chromium, tungsten, molybdenum, etc.) and their alloys.

 

Classification of metal ceramic

Metal ceramics are classified into two categories based on the percentage of each component phase: those with ceramics as the matrix and those with metals as the matrix. Metal matrix metal ceramics typically exhibit high temperature strength, low density, ease of processing, corrosion resistance, and good thermal conductivity. Therefore, they are commonly used in the manufacturing of structural components for aircraft and missiles, engine pistons, chemical machinery parts, and more.

Ceramic matrix metal ceramics can be further subdivided into several types:

Oxide-based metal ceramics

Used for missile nozzle liners, crucibles for melting metals, and metal cutting tools.

Carbide-based metal ceramics

Utilized in the production of cutting tools, high-temperature bearings, sealing rings, wire drawing dies, and turbine blades.

Nitride-based metal ceramics

Less commonly applied.

Boride-based metal ceramics

Less commonly applied.

Silicide-based metal ceramics

Using silicides as the matrix, combined with partial or trace amounts of metal materials. Among them, siliconized molybdenum metal ceramics find wide applications in industry.

What are the?Differences between Metal Ceramic and Carbide?? 2

The main difference between the two materials

Material distinction
WC (tungsten carbide) carbide?blades are produced using advanced metal powders such as tungsten-cobalt, tungsten-samarium, tungsten-titanium, tungsten carbide, etc., as raw materials, and they undergo high-temperature and high-pressure sintering to achieve their final form. On the other hand, ceramic blades use raw materials like aluminum oxide, zirconium oxide, etc., and are formed through high-temperature sintering treatment to create a new type of material.

Cutting performance

?????

Ceramic blades typically exhibit higher hardness than WC (tungsten carbide) carbide?blades, reaching levels of 1800-2200HV, while the hardness of WC carbide?blades generally falls between 1600-2000HV.

Cutting Performance

In comparison to WC carbide?blades, ceramic blades offer higher precision and smoother cutting surfaces. Achieving high-precision machining results often requires only a single cut with ceramic blades. WC carbide?blades perform better in cutting softer materials, and they often have faster cutting speeds.

Cutting Lifespan

Ceramic blades have better wear resistance, resulting in a longer lifespan. WC carbide?blades are typically more suitable for mass production processing of workpieces.

?? ?? ?????????? ??? ????????? ??????? ????????? 3

Physical performance

?????

Ceramic blades typically exhibit higher hardness than WC (tungsten carbide) carbide?blades, reaching levels of 1800-2200HV, while the hardness of WC carbide?blades generally falls between 1600-2000HV.

Cutting Performance

In comparison to WC carbide?blades, ceramic blades offer higher precision and smoother cutting surfaces. Achieving high-precision machining results often requires only a single cut with ceramic blades. WC carbide?blades perform better in cutting softer materials, and they often have faster cutting speeds.

Cutting Lifespan

Ceramic blades have better wear resistance, resulting in a longer lifespan. WC carbide?blades are typically more suitable for mass production processing of workpieces.

The differences between the two materials

Machining Performance

Ceramic blades are relatively brittle and prone to fracture under external impact. In contrast, the manufacturing process for WC (tungsten carbide) carbide?blades is simple, and they are easy to use and maintain.

Price and Applicability

Ceramic blades are relatively more expensive but are suitable for high-precision cutting processes, such as in the fields of microelectronics and semiconductors. On the other hand, WC carbide?blades are more cost-effective and are suitable for large-scale machining applications.

carbide

???????
In conclusion, WC (tungsten carbide) carbide?blades and ceramic blades each have their own advantages and disadvantages. Choosing the appropriate blade depends on the workpiece and processing characteristics, considering factors such as cost-effectiveness, machining lifespan, and overall effectiveness.

???? ???????

?? ??? ??? ????? ????? ??????????. ?????? ????????? ???? ????? ?? *

国产高清在线观看一区二区三区| 亚洲波多野结衣日韩在线| 女人被大鸡吧操逼| 抽插肥嫩小穴的视频| 久久免费国产视频| 91偷自产一区二区三区蜜臀| 中文字幕无码区一区二区| 国产欧美亚洲一区二区三| 午夜国产三级一区二区三| 欧美99热这里都是精品| 小穴抽插流水视频| 最是人间烟火色在线播放| 欧美十八一区二区三区| 大胸美女被c的嗷嗷叫视频| 最新的亚洲欧美中文字幕| 久久婷婷综合五月一区二区| 尤物网三级在线观看| 亚洲另类激情在线观看| 久久噜噜噜久久熟女精品| 综合伊人久久在一二三区| 啊啊啊好疼视频进来| 无码一区二区三区色哟哟| 91久久愉拍愉拍国产一区| 午夜场射精嗯嗯啊啊视频| 精品麻豆国产免费一区二区三区| 女人操女人大逼大片| 午夜十八禁福利亚洲一区二区| 欧美日韩久久久一区二区三区| 极品 操 抽插视频| 日韩有码一区二区三区在线观看| 老头鸡巴操老太骚逼| 一级毛片完整版免费播放一区| 女人18片毛片。| 干女人逼逼的大几把| 无码一区二区三区色哟哟| 露脸校花求大鸡巴插| 从后面进入嗯啊视频| 2021国产一区二区岛国| 国产精品视频一区二区三区八戒| 男生操女生无马赛克免费| 精品免费在线观看等|