渗碳

In this paper, the relationship among case depth, surface carbon concentration and carburizing process factors has been built.

论文通过非线形回归分析，建立了渗碳层深度和碳浓度分布关系的数学模型。

ABSTRACT : Carburization characteristics and wear behavior of new type meta-bainitic steel were studied.

摘 要：研究了新型准贝氏体钢渗碳特性及渗层磨损性能。

An analysis of the effect of the scales on the process of gas carburization is made and the probability of adding some coke to the furnace to decrease more quickly t...

同时对氧化皮影响气体渗碳进行了计算与分析，提出了在炉子中加入焦碳有可能使炉中的CO_2％较快地降低到正常的CO_2％量。

Carburization characteristics and wear behavior of new type meta bainitic steel were studied.

研究了新型准贝氏体钢渗碳特性及渗层磨损性能。

An analysis of the effect of the scales on the process of gas carburization is made and the probability of adding some coke to the furnace to decrease more quickly the per...

同时对氧化皮影响气体渗碳进行了计算与分析，提出了在炉子中加入焦碳有可能使炉中的CO_2％较快地降低到正常的CO_2％量。

In this paper, morphology transformation laws by plasma modification on cemented carbide (YG16) surface have been studied and influence of decobalt time, decarbonization temperature, decarbonization time and carburizing time main factors on plasma modification lias been investigated.

本文重点研究了YG16硬质合金表面经等离子体改性处理后的组织转变规律，重点探讨了硬质合金表面脱钴时间、脱碳温度、脱碳时间、渗碳时间等主要因素对等离子体改性效果的影响。

The carbonizing gear steel is one of the main structural steels for automotive purpose and the high strength gear steels,which the key automobile works are using in our Country are the foreign imported carburizing steels with various brands.

渗碳齿轮钢是汽车用主要结构钢之一，国内主要汽车生产厂家的高强度齿轮钢材料一直使用不同国家多个牌号的渗碳钢。

The experimental results denoted that the finer pearlite along the austenite boundaries in the as-cast Cr30Ni20NRE steel disappeared first under long-term and high-temperature service condition, and that an umber of Cr- richened carbides were formed due to unila-teral carburizing at long-term and high- temperature, consequently causing Ni to concentrate, bulging and calalyzing decomposition of the carburizing gas.

试验结果表明，长期在高温条件下服役，铸态Cr30Ni20NRE耐热钢中沿奥氏体晶界的珠光首先融入奥氏体，长期高温单边渗碳形成大量富铬碳化物，促使镍富集并起泡形成瘤状物，催化含碳气体的分解；表层瘤状物使辐射管表层疏松，表面积扩张，加快了碳向基体的渗入，提供了碳化物持续长大的条件，并引起沿碳化物周边开裂和奥氏体基体严重萎缩；合金元素的重新分布造成主合金元素铬和镍产生两极分化，镍和硅的富集促使石墨化，与侵入的氧形成内部氧化空洞和膨胀疏松，最终导致构件穿孔失效。

Microstructure and depth of the carburized layer as well as the carburizing process were analyzed.

试样在1250℃铸铁液中保持30s ，渗层深度达219μ m ；在1280℃铸铁液中保持30s ，渗碳层达237μ m 。

Manufacture of steel gears are quenched and tempered steel, hardened steel, case hardening steel and nitrided steel.

制造齿轮的钢有调质钢、淬火钢、渗碳淬火钢和渗氮钢。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。