| 1. | Rare earth high carbon potential carburization of firebrick die 耐火砖模具的稀土高浓度渗碳 |
| 2. | Study on enhancing the surface quality of carburization arc gear 关于提高蜗杆渗碳表面质量的研究 |
| 3. | Automatic production line for gas carburization 气体渗碳自动线 |
| 4. | Behavior and mechanism of tial based alloy surface carburization 在空间质子辐照下甲基硅橡胶的破坏模型 |
| 5. | Standard test method for determining decarburization and carburization in hardened and tempered threaded steel bolts , screws and studs 淬火和回火的螺纹钢螺栓螺母和螺柱的脱碳和渗碳性测定的标准试验方法 |
| 6. | Standard test method for determining decarburization and carburization in hardened and tempered threaded steel bolts , screws and studs metric 淬火和回火的螺纹钢螺栓螺钉和螺柱的脱碳和渗碳性测定的标准试验方法 |
| 7. | 4 the steel shall not be surface carburized . where it is suspected that there is surface carburization the method described in appendix c shall be used for detection 钢的表面不得渗碳。如有质疑,用附录c中描述的探测方式进行表面脱碳。 |
| 8. | In this paper , the effects of process parameter of brush copperplating on the copper film for prevention of carburization were studied ; the relation between the time of carburization and the minimun thickness of copper film for prevention of carburization was established 研究了用刷镀镀铜防渗碳时的工艺参数对镀层防渗碳效果的影响,及渗碳时间与防渗碳所需的最小镀层厚度之间的关系。 |
| 9. | The changing carbon potential carburization - hot oil matrempering technology of helical bevel gear for automobile driven axle is introduced in this article . the board test and production application show that the technology not only quenchs directly gear after carbrization , but also decreases the heat treatment deformation and raises the contact fatigue life of gear 介绍了汽车驱动桥螺旋锥齿轮的变碳势渗碳一热油分级淬火工艺,台架试验及生产应用表明,该工艺与专用渗碳淬火挂具相结合,不仅可实现齿轮渗碳后直接淬火,而且热处理变形小,齿轮接触疲劳寿命也有所提高。 |
| 10. | Abstract : a new simulating method is established for the calcul ation of the hardness profile of high - carbon - concentration deep - carburization , on the basis of analyzing this process and taking into account the influence o f carbide solution and dissolution , carbon - concentration and temperature on the diffusion behavior , and the influence of the environment factor on carbon trans fer through the gas - solid interface 文摘:在对高浓度深层渗碳的特点进行分析的基础上,考虑到碳化物的析出与溶解、温度及碳浓度对扩散行为的影响,气氛环境对相界面碳传递过程的影响,淬火烈度对渗碳层冷却效果的影响,提出了一种新的模拟高浓度深层渗碳渗层硬度分布的方法。 |