The method and advantages and disadvantages of overlaying welding of jaw crusher
Overlaying welding method for jaw crusher:The crusher to place with brush clean copper welding, then fractional layer surfacing, first layer with 6 cm of mild steel electrode welding, and welding copper wire brush net, then iron powder about a tablespoon of half above 6 cm in welding, mild steel electrode surfacing layer second, after several layers of second layers according to the operation......., so the cycle, and not to wear until surfacing at generally flat so far.2, advantages(1) improve the crushing equipment parts (plate) the utilization rate of former pay per tooth plate can be used only 30 units, will be scrapped, occupied since the tooth plate can be subjected to continuous surfacing welding, each pay 140 units available, improve the utilization rate of up to 4 times.(2) cost is greatly reduced. The producer price of a manganese steel plate is 6 times more than that of the welded plate.(3) the tooth at the surfacing will not fall off until it is polished.3, shortcomingsThe hardness and toughness are not enough, so the abrasion resistance still can not meet the requirement.
Overlaying welding method for jaw crusher:The crusher to place with brush clean copper welding, then fractional layer surfacing, first layer with 6 cm of mild steel electrode welding, and welding copper wire brush net, then iron powder about a tablespoon of half above 6 cm in welding, mild steel electrode surfacing layer second, after several layers of second layers according to the operation......., so the cycle, and not to wear until surfacing at generally flat so far.
The method, advantages and disadvantages and the points for attention in the application of jaw crusher in surfacing weldingThe jaw crusher (English translation: Jaw Crasher), commonly known as the jaw crusher, jaw and jaw by static two jaw plate crushing cavity, two jaw motion simulation animal and crusher material crushing operation. Widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries, a variety of ore and bulk materials of medium grain crushing. The maximum compressive strength of the crushed material is 320Mpa.
Overlaying characteristics of jaw crusher:(1) improve the crushing equipment parts (plate) the utilization rate of former pay per tooth plate can be used only 30 units, will be scrapped, occupied since the tooth plate can be subjected to continuous surfacing welding, each pay 140 units available, improve the utilization rate of up to 4 times.(2) cost is greatly reduced. The producer price of a manganese steel plate is 6 times more than that of the welded plate.(3) the tooth at the surfacing will not fall off until it is polished.3, crusher surfacing defects:The hardness and toughness are not enough, so the abrasion resistance still can not meet the requirement.4, jaw crusher welding should pay attention to:(1) the current at the time of surfacing shall be calculated by 45 amperes of 1 cm electrode (if 6 cm electrode is used, the current should be multiplied by 45 by 6 to 270)(2) the pig iron powder used for surfacing must be very clean, oil and rusty water can not be used.(3) when placing pig iron powder, it is best to block it on both sides, otherwise it will be easily separated when the arc is burning.(4) when welding the fixed tooth plate of the tooth, it should be noticed that there is a hole at the end of it, so the temperature should not be too high, otherwise it will crack easily.(5) of course, before welding, the plate will be heated below, the effect will be better.
