国产精品女人呻吟在线观看,欧美内射深喉中文字幕,日韩A∨精品日韩在线观看,亚洲免费观看视频

Hello, Welcome hengtong! Main products: domestic polycrystalline diamond wire drawing die, imports of polycrystalline diamond drawing die   
中文English
Tianchang hengtong metal products co., LTD.
Freephone0550-7761798

News

  • Tianchang hengtong metal products co., LTD.
  • xiliren
  • phone:15155048886
  • phone:0550-7761798
  • fax:0550-7762738
  • mail:254025023@qq.com
  • address:YangCun industrial park,Tianchang,Anhui
您所在的位置:sy >News >Dynamics
Daily maintenance of wire drawing dies

Drawing die in the long-term use process and die wall by metal wire strong friction and scouring effect, inevitably will produce wear phenomenon, the most common is in the work area wire into LJ appear annular groove (dent) wire drawing die ring groove, exacerbated by the wear of the die hole, because ring groove for loosening and spalling of the core material of small particles is metal wire into the die hole area and sizing area, plays a role of abrasive, and into the die hole of the wire is like grinding as aggravate the die hole wear. If not replaced in time to repair, then the ring will continue to accelerate the expansion of the expansion, so that the repair increased, and even more likely to appear in the ring groove crack, so that the drawing die completely broken scrap.

Learned from the experience, to develop a set of norms, to strengthen the daily maintenance, regular maintenance of the drawing die is a very cost-effective thing. Once the wire drawing dies any slight wear, and in time for polishing, the drawing die back to the original polishing state to spend a short time, and the pass of the wire drawing die no obvious change.


return to the top
?
  • jishu:15155048886
  • phone:0550-7761798
  • fax:0550-7762738
  • mail:254025023@qq.com
  • address:YangCun industrial park,Tianchang,Anhui
popular keywords: /WEB%INF/web.xml?

ScanningVisitMobile version

Tianchang hengtong metal products co., LTD.  Copyright ?  皖I(lǐng)CP備16005291號-1 正版建站推廣:千秋在線 
少妇高潮惨叫久久久久电影69| 一本色道久久88精品综合| 日韩精品无码人成视频手机| 人妻少妇邻居少妇好多水在线| 国产亚洲日韩欧美一区二区三区| 亚洲中文字幕久久久一区|