Zinc pump is taking into account the zinc liquid temperature is high, the proportion of large, and easy to coagulate and many other factors and design, the correct use of methods, will ensure long-term use of pumping zinc pump to protect the premise. Pumping zinc pump operation steps are described as follows: 1. Zinc zinc pump must be the appearance of the inspection, hand wheel rotation, zinc pump to determine no abnormal feeling, you can energize observe the zinc pump direction of rotation is marked with the direction Consistent. 2. Use a spreader to lift the zinc pump and place it upright slowly into the zinc solution (at this point, the zinc pump can not be energized). The depth of the bottom of the pump casing immersed in zinc solution is about 200-300mm. 3. When the zinc pump immersed in the liquid zinc moment, the liquid zinc liquid will immediately solidified in the pump body, and the drive shaft, impeller, shell lock, which is caused by the low temperature pump liquid coagulation of zinc, it does not matter , At this time can rest in the liquid zinc pump back and forth in order to speed up the solidification of zinc melt speed. This period of time, is the preheating process of zinc pump, when the pump temperature and the temperature of zinc liquid equilibrium disappears. 4. When the pump body immersed 5-10 minutes in the zinc solution, turn the handwheel by hand, if at this time the drive shaft turns freely, it means that the solidified zinc has been melted when it is put in, . 5. When the pump is powered on, the pump port may not be immediately out of zinc, which is a heat exchange between the zinc tube and zinc liquid or the pump body gap adjustment process. If 5-10 minutes after pumping, there is still no zinc solution to flow out. At this time, the depth of the zinc liquid pump immersed in the zinc liquid can be increased, but the maximum should not exceed 400mm. 6. Zinc pumping process, due to the decline of zinc liquid, zinc pump must also be reduced, in order to ensure the depth of immersion. 7. In the need to stop pumping zinc, you must first disconnect the pump power, and then the pump raised zinc liquid, until the zinc tube back to the zinc solution is completed, immediately restart the zinc pump, in order to impeller, the housing stained Attached to the zinc get rid of this process until the temperature of liquid zinc pump down a lot so far. It must be pointed out here: when the zinc pump is stopped, it is likely to be re-locked, which is caused by the residual zinc in the sleeve gap solidification, is normal, the next time you use the method of Article 3 Can be solved. 8. Zinc pumping zinc after the pump, due to the high temperature, should be suspended cooling, before the temperature is not much lower (about 30 minutes) is prohibited to pump the floor, so as to avoid the impact of the deformation of the future continue to use.
T&Square Bolt
The national standards for T-bolts are as follows:
GB / T 2165-1991 machine tool fixture parts and components T-groove quick release Bolt (obsolete) was adjusted to JB / T 8007.2-1995, and then replaced by JB / T 8007.2-1999 | machine tool fixture parts and components T-groove quick release bolt
Bolts for T-groove (GB / T 37-1988)
There is also mechanical standard: JB / T 1709-1991 T-bolt (obsolete), replaced by JB / T 1700-2008 valve parts nut, bolt and plug
At present, din186 T-type square neck bolts, GB 37, din188t type double neck bolts are commonly used. The materials are carbon steel, stainless steel, alloy steel, etc. the specifications range from m8-m64. Musheng, a domestic high-quality hardware manufacturer with good quality control, has formed a mature process.
T Bolt,Hammerhead T Bolts,Harden T Slot Bolt,Hex Head Flange Bolt
Suzhou Gubao Screws Co.,Ltd. , https://www.hongyiscrew.com
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