Case hardened: a case hardened fastener is a fastener of ferrous material having a surface which has been made harder than the core.
表面硬化：表面硬化的紧固件是黑色金属，其表面经过处理后比内心硬度要高。
By means of extensive tests on nitrided and case hardened gears, it was attempted to discover the possibilities and the limits of nitriding for gears.
通过对氮化和表面渗碳硬化齿轮大量的试验研究，设法揭示对齿轮进行氮化处理的可能性和局限性。
Generously dimensioned ball or roller bearings, case hardened forged and ground gears, and internally and externally reinforced gearboxes ensure a long, low maintenance service life.
大尺寸滚珠或滚子轴承，表面硬化伪造和地面齿轮，齿轮箱内部和外部强化确保长，维护成本低使用寿命。
CDS Manufacturing builds table top roll sorters. Standard table top roll sorter system includes a pair of 12 "case hardened stainless steel rollers, adjustable roller height and Angle."
CDS生产公司的台式分类器是一款标准的台式滚动分类系统，设备包括12“表面硬化的不锈钢滚筒，可调节滚筒高度和角度。”
Most nonferrous metals can be annealed, but never tempered, normalized, or case-hardened.
而大多数有色金属可以进行退火，但不能进行正火或者表面硬化。
The system can be transported in a ruggedized backpack or hardened case to withstand everyday portability.
该系统可以用一个坚固的背包或箱子携带。
Case: Custom 30 meter stainless steel, with hardened mineral crystal, and stainless steel caseback.
运动：日本石英，30米防水，不锈钢，硬矿物晶体和不锈钢底盖带：弹簧钢。
According to real production case of our country, it is necessary to establish the standard about the conversion tables on hardness and strength of hardened high speed steel.
根据我国具体的生产实际情况，有必要建立我国自己的淬硬高速钢洛氏硬度和维氏硬度换算的标准。
According to the feature of the temperature distribution induced by laser scanning, the simple formulas for the fast calculation of the hardened case are set up.
根据激光扫描时工件内温度场及硬化层的分布特征，提出了简便实用的硬化层预测计算公式。
Based on that hardened case depth can be increased by delay in air after forging, the technique of delay quenching after forging is proposed in this paper.
基于锻后预冷淬火可提高工件的淬硬层深度，本文提出锻后余热预冷淬火工艺。
The formula of residual stress in laser transformation hardened case is inferred, and the experimental results are discussed.
推导了激光相变硬化层的残余应力公式，并对实验结果进行了分析讨论。
It is shown that the simulating technology established can predict the depth, width and contour of hardened case and provide guide to select reasonable parameter.
该模拟技术可以预测出具体工艺条件下电子束硬化层的深度、宽度和轮廓，并为选取合理的工艺规范提供指导。
The experimental results show that the residual compressive stresses existed in the laser hardened case are universal phenomena.
结果表明，激光相变硬化层中的残余压应力是普遍存在的现象。
Test results show that deformations in laser hardened gears was negligible to influence gear precision. The microstructure of hardened case consists of a hardened zone…
检测结果表明：齿轮激光淬火变形很小，不影响齿轮的精度等级。
Aiming at heavy duty and low speed gear transmission, Zheng Zhou Research Institute of Mechanical Engineering puts forwards ZY-1 case- hardened double-circular-arc gear.
为此，郑州机械研究所针对低速重载齿轮传动领域设计了ZY-1型硬齿面双圆弧齿轮齿形。
The stress state of laser hardened case was press stress.
激光淬火硬化层应力状态为压应力。
Main ingredients: green tea essence, almond oil, mint, cationic active agent, high elastic case-hardened cells and etc.
主要成分：绿茶精华、杏仁油、薄荷、阳离子活性剂、高弹性定型因子等。
Door window should be made out of hardened glass in order to protect worker in case of leakage and broken valve.
观察门上需安装有钢化玻璃，保护操作者，防止被测地泄漏和破裂。
The three key techniques for laser surface hardening of gear have been proposed in this paper. With using these techniques, an uniform hardened case along the flank of gear has been obtained easily.
提出了齿轮激光表面强化的偏置技术、变速扫描技术和辅助冷却技术，因而，获得了沿齿廓分布的均匀硬化层。
Case: Custom 30 Meter Polycarbonate With Hardened Mineral Crystal And Stainless Steel Caseback.
聚碳酸酯30米防水，矿物晶体和不锈钢底盖。弹力带聚碳酸酯。
Case: Custom 30 Meter Polycarbonate With Hardened Mineral Crystal And Stainless Steel Caseback.
聚碳酸酯30米防水，矿物晶体和不锈钢底盖。弹力带聚碳酸酯。
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