查询词典 carbide

Cemented carbide ; nanosized WC ; free carbon ; decarburizing

硬质合金；纳米WC粉；游离碳；脱碳

Approaches of increasing wearability of materials under sand slurry wear condition were to reduce the micro-cutting of matrix structure and cut down the desquamating of carbide particles.

提出了在泥沙磨损条件下提高材料耐磨性的途径：一方面是如何减少基体组织的显微切削磨损；另一方面是如何使碳化物不易脱落，更好地起到保护基体的作用。

The wear surface morphologies showed that the mechanism of the 45 steel was micro-cutting and plastic deformations, and the mechanism of high chromium cast iron was micro-cutting of matrix structure and desquamating of carbide particles under the sand slurry wear condition.

对于象45钢这类较软的材料，在泥沙磨损条件下，材料的磨损机理主要是显微切削和多次塑性变形。对于含有较多高硬度碳化物质点的高铬铸铁类材料，在泥沙磨损条件下，材料的磨损机理主要是基体组织的显微切削和碳化物颗粒的脱落。

According to the characters of transformations in solids, the MA process can be divided into three stages: physical fragmentizing stage, diffusion and solid solution stage, and carbide forming stage.

根据相变特点将Fe-Cr-C三元合金的机械合金化过程分为三个阶段：物理粉碎阶段、扩散固溶阶段和碳化物析出阶段。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

These include: a natural rubber liner with brush electrodes for highly abrasive rocky slurry, a polyurethane liner with tungsten carbide-coated electrodes for fine slurries, a high-temperature PFA lining with duplex electrodes for concentrated black liquors, and a hygienic PFA liner with bow electrodes for fruit mashes and pulps.

包括：为磨粉浆所设计的原始橡皮衬里和带刷电极组合；为泥浆设计的聚亚安酯衬里和钨制碳化物表层电极组合；为浓液设计的高温PFA衬里和复式电极组合；以及为水果捣碎和果浆而设计的清洁PFA衬里和弓形电极组合。

The process involved the preparation of vanadium carbide which can be prepared from V 2O 3 by vacuum carbon reduction and then being nitrified to vanadium nitride by nitrogen gas.

以V2 O3为原料，采用真空还原方法制备出碳化钒，生成的碳化钒直接进行渗氮制备出碳氮化钒。

The process involved the preparation of vanadium carbide which can be prepared from V 2O 3 by vacuum carbon reduction and then being nitrified to vanadium nitride by nitrogen gas.

利用扫描电镜、透射电镜和X射线能量分散谱仪对高钒高速钢中合金碳化物———碳化钒的精细结构及微区成分进行分析。

Bainitie carbide nucleates at the phase interface of γ/αand grows towards austenite and the subunits of bainite ferrites, which is a diffusion transformation of carbon atom along the phase interface of γ/.

钢中贝氏体碳化物在γ/α相界面上形核，向奥氏体中和铁素体亚单元间长大，是碳原子沿着相界面扩散的过程。

Study on flue gas purification for obturating furnace of calcium carbide

苇末除尘除尘灰引射除尘除尘器除尘装置除尘刀袋式除尘除尘方案氧化剂的电化学行为正常人血浆，冻干健康人血浆

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新