Leak detection using helium mass spectrometer in vacuum furnace?

评论

发表评论

此博客中的热门博文

Reasons and Solutions for Fragile Belt of Roots Blower

图片
1. Reasons for easily broken belt of Roots blower: 1. First of all, consider the high speed and high temperature of Roots blower. 2. The distance between the head and motor of Roots blower is too large and the belt is tight. 3. The belt does not match the V groove of the pulley, so it can not withstand the load fracture after wearing. 4. Active pulley and driven pulley are not parallel, resulting in serious friction between belt and groove on one side, and can not bear load fracture after wear. 5. Heavy load, long-term overload operation of belt is easy to break. 6. Roots fan nose and motor pulley are not concentric, different axes. 7. Belt quality problems. 2. Measures to prevent the belt of Roots blower from breaking. 1. Roots blower must start without load before running. After starting, it should be loaded. After running, it can generally avoid triangular belt breaking. 2. The pulley between the motor and the fan should be parallel, which is a key point. If not para...
阅读全文

How to Repair Corroded Water Ring Vacuum Pump

图片
The corrosion forms of water ring vacuum pumps can be divided into two categories: overall (uniform) corrosion and local corrosion. The former occurs more evenly on all surfaces of the equipment, while the latter occurs only locally. For example, pitting corrosion, crevice corrosion, intergranular corrosion, stress corrosion cracking, corrosion fatigue, hydrogen corrosion cracking, wear corrosion, delamination corrosion and so on. It is one of the effective anti-corrosion measures for water ring vacuum pump to use polymer composite repairing material to carry out surface organic coating anticorrosion. Surface adhesion protection can be widely used in the repair and pre-protection of abrasion, cavitation and corrosion parts. It has good chemical resistance, excellent mechanical properties and bonding properties. Compared with the traditional welding repair of pressure vessel, it has the characteristics of simple construction, low cost, safety performance and good repair ...
阅读全文