The present study state on white layer found in hard metal turning is summarized.
综述了国内外对高硬金属加工过程中表面白层的研究现状 ,指出了当前白层研究中存在的分歧和争论 ,着重讨论了表面白层的组织结构和形成机制 ,并提出了今后的研究方
In order to confirm the component of some water-based lubricant for metal working, it is adopted that solvent extraction pretreatment is at first, separation and purification by column chromatograph is at second, then using the collected fraction to analyze the infrared spectrum and elements.
为确定某金属加工用水基润滑剂组成成分,采用先经溶剂萃取预处理,再通过柱层析进行分离和提纯,然后对收集的馏分进行红外光谱、元素分析。
Classification and technical requirement of metal working lubricants inside and outside China are described.
介绍了国内外金属加工润滑剂产品的分类、技术要求,详述了金属轧制工艺、金属冲压工艺、金属切削工艺、电火花加工工艺润滑剂的技术发展水平,指出了冷轧轧制油、金属冲压润滑剂、金属切削润滑剂、电火花加工油的未来发展趋势。
The Research and development of metalworking lubricants;
金属加工润滑剂的研究与进展
Some tribochemical reactions in metalworking were introduced.
论述了金属加工中的表面摩擦化学反应、润滑剂浓度和反应活性与腐蚀磨损的关系及其边界极压润滑效果。
Reform Study on the Teaching Contents and Curricular System of Metallurgical Pressure Machining Speciality for 21st Century;
面向21世纪金属压力加工专业教学内容和课程体系改革研究
Very low viscosity oil for punching & stamping of ferrous & non ferrous material.
极低粘度金属加工油，适合黑色金属和有色金属的冲孔和冲压加工。
cast glass, wired, unworked, in sheets
压铸玻璃板材,加金属丝,未加工
metal transformation process (rolling, forging, extruding, heat treating)
金属加工工艺(轧制、锻造、挤压、热处理)
but excludes sheet metal working machinery and metal-forming and forging machines.
但不包括金属板加工机，金属成形机与锻压机。
cast glass, non-wired, unworked, in sheets
压铸玻璃板材,无金属丝未加工
Research on Extraction of Platinum Group Metals by Pressure Cyanidation;
加压氰化法提取铂族金属新工艺研究
Knowledge on production process of coining, foundry, and machining etc
熟悉金属材料的冲压、机加和铸造等加工工艺
Work done in metal.
金属加工，金属制品
cathedral glass, cast or rolled, non-wired unworked in sheet
单面压花玻璃,压铸或轧制,无金属丝未加工
corrugated glass, cast or rolled, non-wired, unworked in sheet
波纹玻璃板材,压铸或轧制,加金属丝,未加工
Analysis of Stress-Strain State During Metal Plastics Machining;
金属塑性加工中应力——应变状态分析
Develop the Industry of Further Processing Electrolysed Manganese in Hunan Province;
大力发展湖南电解金属锰深加工产业
Recommended for light to medium severity drawing, rolling & stamping applications on ferrous & non ferrous material including aluminum and steel.
建议使用于黑色金属和有色金属的轻到中度拉伸、压延和冲孔加工。
glass ,hammered cathedral, cast or rolled, wired unworked, in sheets
锤痕蝉单面压花玻璃板材,压铸或轧制,加金属丝,未加工
opal glass, cast or rolled, non-wired, unworked, in sheets
乳白玻璃板材,压铸或轧制,无金属丝,未加工
cylinder for calendering or rolling machines (excl. metal- or glass-working machines)
砑光机或滚压机（金属或玻璃加工机除外）圆筒
Studies on the Process of High-pressure Oxidation Leaching for Separation of Base Metals from Antimony-gold Alloy;
富贵锑的加压氧化浸出分离贱金属工艺研究