Phosphate Bonded Self-hardening Core in Investment Casting;
精密铸造磷酸盐粘结自硬型芯的试验研究
Application of Phosphate Bindering Self-hardening Mold Core and Processing Analysis;
磷酸盐粘结自硬型芯的应用实例及工艺分析
dead-hard steel
极硬钢, 高硬钢, 高强钢
High-carbon steels are called "hard".
高碳钢叫做“硬钢”。
surface hardening steel
低淬透性钢, 浅淬硬钢, 表面硬化钢
Study on Cutting Temperature under Ultrasonic Hard Turning 45 Hardened Steel
超声硬切削45淬硬钢的切削温度研究
Study on High Speed Cutting Hardened Steel with the Coated Insert (CN35);
硬质合金涂层刀具（CN35）高速车削淬硬钢的研究
An Experimental Research on the Surface Roughness by Dry Cutting of Hardened Steel SKD11
硬态干式车削淬硬钢SKD11表面粗糙度试验研究
a very hard heat-resistant steel containing tungsten.
极硬抗热且含钨的钢。
steel with a surface that is much harder than the interior metal.
表面比内部金属硬的钢。
case hardening grade alloy gear steel
渗碳(皮硬)级合金齿轮钢
as hard as steel
非常坚硬，坚强女口钢
The more carBon the steel contains, the harder it Becomes.
钢的含碳量和钢的硬度成正比。
Heat treated steels, alloy steels and free cutting steels. Part 11: wrought, case hardening steel
热处理钢、合金钢与易切削钢，第十一部分：锻造表面硬化钢
The procedures of heat treatment of steel include hardening,tempering,annealing and case hardening.
钢的热处理工序包括硬化、回火、退火和表面硬化。
Something that hardens, as a substance added to iron to yield steel.
硬化剂如加在铁上使其形成钢的硬化性物质
Effect of Quenching Treatment on Microstructure and Hardness of (Ti,V)C Steel Bonded Carbide
淬火对(Ti,V)C钢结硬质合金组织及硬度的影响
Bake Hardenability and Dent Resistance of Isotropic Steel and BH Steel
各向同性钢与烘烤硬化钢的烘烤硬化性和抗凹陷性
Hardness of Different Types & Size of Free Cutting Steel
易车不锈钢及易车钢之不同尺寸及硬度比较
To quench steel is that hot steel is quenched to harden it.
淬钢就是烧热的钢置入水中骤冷使之坚硬。