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- Microstructure, microhardness and tribological properties of ferrous sintered cam materials were investigated under two state (sintered and wide-band laser surface quenched). 本论文研究了铁基烧结凸轮材料经宽带激光表面淬火前后的显微组织、硬度及其摩擦学特性。
- wide-band laser surface quenched 宽带激光表面淬火
- The hardness of 45 steel by surface quenching with plasma was about HV800,the method of heat treatment by using plasma as heat source was feasible. 45号钢经等离子体表面淬火后,淬火硬度在HV800左右,采用等离子体热源对工件进行热处理是可行的。
- Surface quenching hardness for different steel types are specified according to modules along with the depth of carbonized layer and the hardness match between meshed gears. 按模数大小规定了不同钢种的表面淬火硬度以及关于渗碳层深度和相啮合齿轮的硬度匹配。
- The hardness of camshaft surface quenching layer by laser surface heat treatment has been greatly improved.This is benefit to increase the surface fatigue strength of camshaft. 激光表面热处理后的凸轮轴表面淬硬层硬度有大幅度的增加，有利于提高凸轮轴表面抗疲劳强度。
- The hardness of 45 steel through surface quenching with plasma reaches about 800 HV.Thus, the method of heat treatment using plasma as heat source is practical. 45号钢经等离子体表面淬火后,硬度在800HV左右,表明采用等离子体热源对工件进行热处理是可行的。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He is honest only on the surface. 他只是表面诚实而已。
- The Analysis for the Distortion of the Coil Welded Hollow Tube after its Surface Quenched 卷焊空心筒表面淬火变形分析
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Surface mail takes longer than airmail. 普通邮件比航空邮件慢。
- The surface of the lake is quite still. 湖面相当平静。
- Keywords surface and interface of materials;P/M;cam materials;surface quenched;tribological properties; 材料表面与界面;粉末冶金;凸轮材料;表面强化;摩擦学特性;
- It's2 yuan by surface mail and3.6 yuan by air. 寄平信2元，寄航空要3元6角。
