Centralizer and its manufacturing method
A manufacturing method and a technology of centralizers, which are applied in the manufacture of tools, earth square drilling, ceramic molding machines, etc., can solve the problems of affecting crude oil output, short replacement cycle, and lower production efficiency, so as to prolong the repair and maintenance cycle and reduce maintenance costs , the effect of increasing crude oil production
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[0021] Such as figure 1 As shown, the present invention includes a centralizing block 1 and a short rod 2. The centralizing block 1 is sleeved on the outer circumference of the sucker rod short rod 2, and the outer circumference of the centralizing block 1 is evenly provided with 4 shafts with the centralizing block 1. Diagonal guide slot 3 with a critical angle of 18 degrees. The centralizing block 1 is made of silicon nitride ceramic material.
[0022] Because the silicon nitride ceramic material has the unique properties of wear resistance, corrosion resistance, high temperature resistance and light weight, the centralizer has the advantages of not easy to wear, long life, long replacement cycle, and can improve production efficiency.
[0023] The manufacturing method of the above centralizer includes the following steps:
[0024] ① Make a mold according to the technical requirements of the centralizing block 1;
[0025] ② Grind the silicon nitride ceramic powder into fine powd...
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