The "guide post" in the mold is also called "guide post", and its role is to guide. Product material characteristics: skd-11 is made of high chromium steel, with good hardenability, small heat treatment deformation, and high wear resistance. The front end of the guide post should be inverted with a 3°~5° taper angle. If the guide post body is designed in a conical shape, the position matching accuracy of the two templates will be more accurate. Since the sliding fit between the guide post and the guide sleeve is a frequent in and out sliding, the following requirements should be put forward for the guide post.
① The guide post should have good lubrication performance, and a lubricating oil tank should be opened when necessary.
② In order to ensure the working strength of the guide post, the fixed part diameter of the guide post is required to be 1.5 to 2 times the diameter of the working part of the guide post.
③The roughness Ra of the guide column working surface should not be greater than 0.63pm.
④ The working surface should be wear-resistant and should have a certain degree of hardness.
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