秋霞一级片,日韩中文AV一二三区,97视频免费欣赏,不卡的AV网站在线观看

Hello, welcome to Xinzhan 中文站English
Professional automatic
Telephone:0519-81191080

How to use spot welder more safely

Release time:2021-08-27 08:28:32 popularity:810 source:本站

Spot welding machines are widely used in crafts, electronic components, instruments and meters, electrical switches, cable manufacturing, filters, silencers and other manufacturing industries. Clean the surface of the weldment during operation. After accurate assembly, send it between the upper and lower electrodes and apply pressure to make it contact well; The contact surfaces of the two workpieces are heated and partially melted by power on to form Nuggets; Maintain the pressure after power failure to make the nugget cool and solidify under pressure to form solder joints. The equipment has the function of voltage data detection during welding to easily know the voltage fluctuation during welding.
How to use spot welder more safely?
All dirt, oil stain, scale and rust must be removed before steel weldments are welded. For hot-rolled steel, it is best to pickle, sand blast or remove the scale with grinding wheel. Although the unclean weldment can be spot welded, it seriously reduces the service life of the electrode and the production efficiency and quality of spot welding. Medium and low carbon steel with thin coating can be welded directly.
First connect the cooling water and then the power supply for welding. Procedure of welding process: place the weldment between the two electrodes, step on the foot pedal, and make the upper electrode contact with the weldment and pressurize. When the foot pedal is continuously pressed, the power contact switch is connected, so the transformer starts to work, and the secondary circuit is energized to heat the weldment. When the pedal is released after welding for a certain time, the electrode rises, and the power supply is cut off first and then restored to the original state by the tension of the spring, and the single point welding process is over.
Power on inspection is necessary when using the spot welding machine, which is an important link when using the spot welding machine. Sometimes the electrical equipment may be exposed. Of course, there may be leakage in our gas circuit system, so we must check it before use, so as to ensure the safety of our production.
Spot welding machines are divided into power frequency welding machines, pulse welding machines and frequency conversion welding machines according to the supply mode of electric energy. With adjustable stroke cylinder and fast solenoid valve, it is easy to operate, fast welding speed, save energy and improve production efficiency.
Online Service
contact information

Hotline

0519-81191080

work shift

from Monday to Friday

Company Office Number

0519-81191080

QR code
色呦呦呦三区| 国产麻豆久久久久久| 欧美v日本v在想| 665566中文字幕在线| 久久XX日本综合| 国产一级片亚洲日韩欧美| 国产日韩欧美高跟鞋一区二区| 艹少妇久久久久| 日韩激情文学在线视频| 亚洲天堂精品官网| 91视频在线国内视频| 99久久免费高清热品| 青青草av成人精品| 国产美女张开双腿久久久| 色站av一区| 少妇一区二区在线视频| 伊人十月激情综合| 老司机 人妻| 青青操在线视频在线看| 欧美日本韩国在线观看| 日韩电影久久久| 精品香蕉国产一区二区三区四区| 久久婷婷综合亚洲狠狠| 日本黄色中文字幕无码中出片| 久久久中文字幕日本无吗| 日本人凄中文字幕| 成人丈香蕉一区二区| 亚洲在线观看av| ww精品视频| 福利视频一区不卡| 在线中文无码播放| 欧美 日本 一区| 高清无码在线观看视频| 少妇熟妻电影观看| 人妻中文在线高清| 欧美日韩国产在线人成视频网| 欧美黄片观看一区| 狠狠推狠狠干狠狠撩| 啪啪啪自拍亚洲| 欧美一区八区在线视频| 综合另类一区二区色综合久久|