91AV蜜桃臀,成熟在线人妻av,aa久久9,5av在线,久久久国产福利,日韩人妻丝袜美腿三级,精品国产美女操逼,青娱乐地址,伊人免费视频玖玖爽

8 process performance requirements for mould manufacturing

author:安迪模具 Release time:2015-12-17

 The manufacture of mold is usually made of forging, cutting and processing, heat treatment and other processes. In order to ensure the quality of the mould and reduce the production cost, the material should have good forging, cutting, hardening, hardenability and grinding. There should also be small oxidation, decarburization sensitivity and quenching deformation cracking tendency.

1. Malleability
It has low thermal forging deformation resistance, good plasticity, wide forging temperature range, cold crack and precipitate network carbide tendency low.
2. Annealing technology
The spherification annealing temperature range is wide, the annealing hardness is low and the fluctuation range is small, the spherification rate is high.
3. Cutting processing
Large cutting amount, low cutting tool loss, low roughness of machining surface.
4. Oxidation and decarbonization sensitivity
High temperature heat resistance is good, decarbonization speed is slow, it is not sensitive to heating medium, it has a small tendency of flax.
5. Hardening
It has uniform and high surface hardness after quenching.
6. Hardenability
After quenching, a deeper hardening layer can be obtained and the quenching medium can be hardened.
7. Quenching deformation and cracking tendency
The conventional quenching volume is small, the shape warps, the distortion is slight, the abnormal deformation tendency is low. The normal quenching cracking sensitivity is low, and the temperature of quenching and the shape of the workpiece are not sensitive.
8. Grinding ability
The grinding wheel has small relative loss, no burn limit grinding, and is not sensitive to the quality and cooling conditions of the grinding wheel. It is not easy to have grinding and grinding cracks.
prev:About die craft introduction
next:none
Browse through funnel copper head copper vise Relevant content
Attn:Mr. Zhang Tel:+86-15231678966
Website:www.bjjzby.cn address:North of the Intersection of Ruiheng Road and Ruitong Road, West of Haihua Street, Huanghua City, Cangzhou City, Hebei Province
HEBEI ANDY MOULD CO., LTD. (c)2015-2016 www.bjjzby.cn All Rights Reserved For the record:冀ICP備2021027724號-1
西和县| 蚌埠市| 连平县| 永和县| 龙游县| 临颍县| 昆明市| 南投县| 武功县| 吴川市| 怀集县| 和政县| 德钦县| 神木县| 恩平市| 青州市| 沙田区| 阳城县| 桦甸市| 太和县| 尉犁县| 屏东县| 新巴尔虎左旗| 胶南市| 资中县| 温州市| 安远县| 高要市| 绥阳县| 家居| 南澳县| 东乡族自治县| 班玛县| 凤冈县| 江津市| 青神县| 盘山县| 栾川县| 新闻| 衡南县| 莱芜市|