在线精品亚洲观看不卡欧,中文字幕色婷婷在线视频,欧美精品一级高清手机在线,在线免费观看人成视频,久久久久久久91精品免费观看,亚洲中文字幕在线天天更新

  • 1
  • 2

News

Contact Us

Hotline::400-820-8239
Meijun Metals (Shanghai) Co., Ltd. 
Tel:021-68183992 
Fax:021-68183990

Details
Position: Home> Details
Analysis of the Causes of the Formation of Imported Aluminum Alloy White Spots
Category: Company News
Date: 2014-09-16
Click: 1177
Author: admin
Collection:
If mixed with other materials, due to factors such as material hardness, applicable tools, processing conditions, etc., it will inevitably lead to material processing problems;

Customer: "I chose your American imported aluminum. How have you always had white spots?" Recently, a customer complained to me. When I was on the field for two days, I used the exclusion method to leak the tools and guide rails. After the reasons for the removal of raw materials, the results found that there are three points:

1. The customer's processing machine tool is processed together with stainless steel, copper and aluminum alloy;

2. The pH of the cutting fluid goes to pH 7.86, and the requirement of the factory is still pH 8-12, which is obviously alkaline;

3, the depth of the knife is too large, the depth of each knife is close to 2mm on one side.

After discussion by the quality team of American Airlines Metal Group, we also gave an analysis:

1. The processing of aluminum alloy bars requires special machine tools. If mixed with other materials, due to factors such as material hardness, applicable tools, processing conditions, etc., it will inevitably lead to material processing problems;

2. The chemical reactivity of aluminum causes its reaction with acid and alkali, so the cutting fluid with a weak alkaline pH of 7.88 will react with aluminum to produce meta-aluminate deposited on the surface of the material;

3, the depth of the knife is too large, the material and the tool friction to produce high heat, will also cause the alloying elements of the material segregation, leading to white spots.

After listening to my analysis, the customer found that they have been processing stainless steel, so the processing of aluminum alloy bars is unprofessional. I am very fortunate to have American Airlines Metal Group as a partner.


Previous: Meijun Metals(shanghai).Inc celebrates Mid-Autumn Festival! ! !
Next: Meijun Metals(shanghai).Inc wireless mobile terminal m.alum.com.cn successfully launched! ! !
屯留县| 大荔县| 马山县| 若尔盖县| 屯昌县| 蒲城县| 龙川县| 岚皋县| 大余县| 龙川县| 汉沽区| 张北县| 巴楚县| 思南县| 邹平县| 淳化县| 云林县| 上高县|