Method for welding bin pump
A welding method and warehouse pump technology, which is applied in the welding field of warehouse pumps, can solve the problems of high production cost and low work efficiency, and achieve the effects of increasing welding productivity, improving the welding working environment, and satisfying the welding effect
Inactive Publication Date: 2011-08-17
ZHEJIANG IND POLYTECHNIC COLLEGE
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Problems solved by technology
[0003] The present invention solves the problems of low working efficiency and high production cost in the welding method of the existing warehouse pump, and provides a welding method of the warehouse pump with high working efficiency and low production cost
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Embodiment Construction
[0010] Reference figure 1 , figure 2 , A welding method of warehouse pump, which adopts multi-layer welding to connect the head 11 and cylinder body 12, cylinder body 12 and cone 13 and cylinder body 12 and cone 13 of the warehouse pump 1 to respectively roll the butt joint longitudinal seam connection Welding of the welding seam, the multilayer welding is to first weld the bottom layer 2 of the warehouse pump 1, and then weld the filling layer 3, and then weld the cover layer 4 of the warehouse pump 1, and the welding of the bottom layer 2 Is using CO 2 The gas shielded welding is completed, the filling layer 3 is completed by electrode arc welding, and the capping layer 4 is completed by submerged arc welding.
[0011] Specific application examples
[0012] The material of the warehouse pump is 16MnR, the thickness of the steel plate is generally 10-12mm, the conveying medium is a mixture of ash and gas, the design temperature is 140℃, and the design pressure is 0.8MPa. The fi...
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The invention relates to a method for welding a bin pump. According to the method, multilayer welding is adopted for welding a seal head and a barrel of the bin pump, welding the barrel and a cone of the bin pump as well as an attachment weld seam of a self-rolling butt-joint longitudinal seam between the barrel and the cone, wherein the multilayer welding is carried out firstly on a base layer of the bin pump, then on a filling layer and finally on a covering layer of the bin pump, CO2 gas shielded welding is adopted for completing the welding of the base layer, shielded metal arc welding is adopted for completing the welding of the filling layer and submerged-arc welding is adopted for the covering layer. The method provided by the invention has the beneficial effects that not only the working environment of a welder is improved, but also the productivity for welding the bin pump is effectively improved on the premise of not decreasing the welding quality, so that a satisfactory welding effect is obtained.
Description
Technical field [0001] The invention relates to a welding method of a warehouse pump. Background technique [0002] The warehouse pump is a key component of the pressure-feed pneumatic conveying system, and is called the "heart" of the entire system. Therefore, whether its quality is reliable or not is related to the stability and reliability of the entire conveying system. It turns out that we have always used electrode arc multi-layer welding, using back root cleaning, grinding, and sealing welding technology. Although the equipment is simple, the operation is flexible and convenient, but when the welder enters the container to complete the back welding, the internal space of the pump is small. However, a large amount of smoke and dust generated during welding, carbon arc gouging, and bevel grinding are collected in the narrow container of the silo pump, and is not easy to circulate and evacuate. Long-term operation will cause great harm to the health of welders, and even caus...
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Inventor 赵巧良金巧芳
Owner ZHEJIANG IND POLYTECHNIC COLLEGE