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hardness相关的网络例句

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与 hardness 相关的网络例句 [注:此内容来源于网络,仅供参考]

The hardness and wear resistance increase with increasing TiB2 content. Adding about 1.5%Mg in melt restrains the conglobation of the TiB2 particles, which makes the size of TiB2 particle decrease and the distribution of TiB2 particle is more homogeneous. The strengthening effect of TiB2 particles is enhanced and the hardness and wear resistance of composites are obviously improved. The excess Mg decreases the refinement effect of TiB2 particles, but the hardness and wear resistance are improved continuously.

结果表明:反应生成的TiB2颗粒平均尺寸约为0.5 μm,材料的硬度和耐磨性随着TiB2含量的增加而提高;添加1.5%Mg元素可明显细化TiB2颗粒,且使其分布更加均匀,增强TiB2颗粒的弥散强化和细晶强化效果,复合材料的硬度和耐磨性显著改善;过量的Mg元素(3%)会造成TiB2颗粒细化效果的下降,但其硬度和耐磨性能继续得到改善。

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With the surface hardness is required, and in determining the purchase and business operators after properly can be broken hacksaw oral zoned, zoned when if skid No traces of high hardness, zoned shallow marks after the hardness has a higher designated a distinct traces of low hardness.

与表面硬度是必需的,在决定购买和经营者正确后可以被钢锯口头划,划打滑时,如果没有高硬度的痕迹,后划为浅标志硬度有较高的指定低硬度明显的痕迹。

The experiment study about the subcritical normalizing holding temperature effects the macrostructure and hardness of the 40SiMnCrNiMoA steel shows: When subcritical normalizing holding temperature is 760℃, the ferrite in the mixture phase structure is lumpish, the hardness of the steel is low (about HRC32), and when the holding temperature is over 800℃, the hardness of the steel is about HRC49, the ferrite in the mixture phase structure is in old critical range austenite grain boundaries, it is disadvantage for the steel strengthening. When the holding temperature is 780℃, the mixture phase structure is mixture phase structure including the strip ferrite、martensite and bainite, the ferrite is less than 20%wt, its grains are fine and even, the hardness of the steel is about HRC38, it is in the range of HRC35-40 which is the long-life drill rod needed.

亚温正火温度对40SiMnCrNiMoA的组织和硬度等性能的影响的实验研究表明,当亚温正火保温温度为760℃时,复合组织中的铁素体形态是块状,处理后的材料硬度相对较低(HRC32左右);而当采用大于800℃温度亚温正火处理,材料硬度为HRC49左右,组织中铁素体大部分较连续地存在于原奥氏体的晶界,对材料强化不利;当40SiMnCrNiMoA钢780℃亚温正火后,硬度为HRC38左右,在以往小钎杆较长寿命所需硬度范围HRC35-40内,而组织为细条状铁素体+以板条马氏体和条状无碳贝氏体为主的复合组织,晶粒细小均匀,铁素体体积含量少于20%。

This paper has obtained following three results about the new scheme:(1) The hardness of recovering the private key from the public key is based on the hardness of the shortest vector problems of several lattices;(2) The hardness of forging a signature is equivalent to the hardness of the closest vector problem of some lattice;(3) Each signature will leak information on the private key,but the final shape of the unlimited leakage is just a group of complicated non-linear equations.

文中给出新方案的3个结果:(1)由公钥恢复出私钥的困难性基于若干格上的最小向量问题;(2)由公钥伪造签名的困难性等价于某个格上的最近向量问题;(3)每个签名值仍然会泄露私钥的一些信息,但无限制泄露的最终形式只是关于私钥的一组复杂的非线性方程。

Contrapose the all of contradiction brought by increasing hardness of silicone rubber base on affecting mechanism of all factors, resolved the confliction brought out by hardness and strength, hardness and elasticity, hardness and thermal stability.

并通过研究各种因素对高硬度硅橡胶性能影响的机理,解决了硅橡胶因硬度增加而引起的强度、回弹性和耐热性等性能严重劣化的问题。

Contrapose the all of contradiction brought by increasing hardness of silicone rubber base on affecting mechanism of all factors, resolved the confliction brought out by hardness and strength, hardness and elasticity, hardness and thermal stability.

分析了两种填料对硅橡胶性能的影响,着重研究了高硬度硅橡胶的热稳定性。并通过研究各种因素对高硬度硅橡胶性能影响的机理,解决了硅橡胶因硬度增加而引起的强度、回弹性和耐热性等性能严重劣化的问题。

Silica and alumina, to an organic silicone rubber, ShoreA 70, to improve the hardness of silicone rubber material and the results indicated that the addition of silica improved the hardness of the material dramatically, but depressed the heat-resistance markedly; the addition of alumina improved the hardness of the material also, but more loading was needed to achieved the hardness as compared with the silica added materials.

研究发现,添加气相法白碳黑能显著提高硅橡胶的硬度,但使硅橡胶的耐热老化性能明显变差;氧化铝也可以用于提高硅橡胶的硬度,但与气相法白碳黑相比,达到相同硬度时的添加量要大的多;比较而言,通过添加氧化铝获得的高硬度硅橡胶具有较好的综合性能,更能满足电化铝烫印版的制作需要。

In this paper,the correlativity between the Brinell hardness and the Rockwell hardness has been investigated by regression analysis,the regression equation between the Brined hardness and the Rockwell hardness is obtained,therefore the quantitative analysis can be carried out.

本文根据布氏硬度与洛氏硬度之间的相关关系,采用数学回归分析方法,求出它们之间的数学表达式──数学回归直线方程,从而能定量地阐述两者之间的关系

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。

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