Vacuum pump vane damage the main types and solve method

also calls the rotary-vane vacuum pump, vacuum pump blade general rotary-vane vacuum pump are installed inside have vane vacuum pump, vacuum pump is one of vacuum packaging with a vacuum pump source of spare parts. Rotary vane vacuum pump in the pump body is not running can cause friction during the whole process, in the absence of a vacuum water pump oil RunHua is easy to cause the vacuum pump vane of damaged or broken, peng rising status, etc. Thus causing the vacuum value is not enough, not on vacuum pump.

a, vacuum pump blade material

on the market at present there are various common vacuum pump blade material, generally have high purity graphite carbon ( Carbon film) Blade, epoxy resin, glass fiber, composite materials, aluminum and other materials. But the application in different well-known brand vacuum pump in different specifications, the raw materials are different.

( 1) High purity graphite carbon ( Carbon film) The key advantage is: the price relative low, environmental protection, low noise, the pump shell friction is small. Defect is easy broken, don't wear resistance.

( 2) Aluminum profile of the key advantage is: wear resistance, but the price is relatively high, noise big, the pump shell friction is very large.

( 3) Laminated glass high purity of carbon graphite materials ( Leaf blade) Sounds small, but more blades don't wear resistant metal materials, with the processing technology development trend of contemporary, high purity glass carbon graphite material blade strength and toughness than before more resistant to wear and tear.

2, damage types and solutions

in the life of the rotary-vane vacuum pump is widely used in daily life, rotary vane vacuum pump impeller is in one of the key components, when there is damage to the rotary-vane vacuum pump impeller, often what sort.

( 1) Blade to cut off the

mainly because inside the pump card has solid, such as metal material block, sand gravel, etc. The impeller rotates, play on the solid block or be solid card to death and make the blade fracture. In addition because the stress of blade root, the small cavity in the pump of gas, liquid pressure caused by fatigue damage caused. Damage the blade impeller shall be immediately moved around, and find a reason, take effective measures, Such as damage due to lack of compressive strength, can improve leaf number) 。

( 2) Blade cracks

in general are produced at the blade root. Half belongs to fatigue cracks, and some because of blade and wheel caused by the huge difference between yi specifications forging cracks. Cracks of impeller, should to carry out the conversion, in case of blade fracture cause safety accidents.

( 3) Blade cavitation erosion

because transportation have corrosive gas, liquid and etching, or with solid particles in the liquid ring, with the impeller surface friction and damage, or because the cavitation condition and damage of impeller, serious should also be changing, if the damage is not serious, can be used to carry out the maintenance repair welding method. When repair welding impeller can be heated to 600 ℃, then carry out repair welding. Specifications expand leaf after repair welding gun, must use sharp knife or at the edge of the lathe production and processing to the original specifications, or it will damage the original features.

        2. 2 kw rotary-vane vacuum pump vane damage, the main types and the solution and can refer to the content of the article is the same as above.

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