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How to solve the deformation of the mold of the cement pipe?

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更新时间:2019年07月18日12:27:21 打印此页 关闭 Clicks: 302 Updated: July 18, 2019 12:27:21 Print this page Close
The solution to the deformation problem of the cement tube mold cylinder
Some cement pipe molds have better concentricity, and the cooperation gap between the running wheel and the support flange is also within the specified tolerance zone. But always beating when working fast. In this case, if there is no other reason for analysis, it may be that the cement pipe mold is too heavy. The reasons are as follows: The structural parts of the cement pipe mold itself are bad-the supporting flange blank has not been finished, and the thickness is uneven; the width of the mold joints is uneven, and the thickness is uneven; uncivilized Damaged operation, etc.
The detailed reasons for the deformation of the cement tube mold cylinder are as follows:
① Untimely repair and maintenance; ② Alternating load during rotation; ③ Welding (cutting) stress generated during the manufacturing and repairing process; ④ Improper operation of workers and other causes the mold to fatigue prematurely until creep occurs Distortion in three dimensions.
The irregular or regular shape presented will inevitably make the mold component to one side, the cylinder will be offset, and the jump will be certain.
Method 1: External force method.
①Principle: The force balance method is adopted. As shown in Figure 1. Make a jacking (supporting) frame of sufficient rigidity or strength, and force water with a jack.
The solution to the deformation problem of the cement tube mold cylinder
② Scope of application: a. One-dimensional linear deformation; b. Large degree of deformation; c. Longer (interval) deformation.
The amount of afterburner increases or decreases depending on the degree of proofreading. To prevent the mold from moving, it must be fixed, especially in the direction of the opening of the diameter half mold. Explore the experience, control the fulcrum and afterburner. Overpowering is not overkill.
Method 2: Internal Force Method
Utilizing the principles of thermal expansion and contraction and molecular physics, oxygen-acetylene flame is used to bake the steel, and it will deform after cooling to achieve the required shape. The area, temperature, and degree of redness of a certain part of the baking mold in detail should be treated in detail according to experience in operation.
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