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How to repair aluminum extrusion die

Source： Time：2017-05-11 11:16:01 views：

The main contents of the aluminum mold extrusion mold include: adjust the proportion of metal flow distribution (such as: mold diversion or diversion tank size adjustment, electro-erosion drainage tank depth adjustment, etc.), adjust the contact friction coefficient,
The main contents of the aluminum mold extrusion mold include: adjust the proportion of metal flow distribution (such as: mold diversion or diversion tank size adjustment, electro-erosion drainage tank depth adjustment, etc.), adjust the contact friction coefficient, (Such as: blocking obstacles, etc.) and adjust the length of the work hole with a variety of ways to change the metal out of the die hole speed, so that the metal evenly out of the die hole to produce qualified extrusion products. Therefore, the moderator must master the relevant inspection techniques in order to correctly analyze and judge the causes of defects in the product, so as to carry out effective mold correction.
The proportion of metal supply distribution, mainly determined by the mold designer and manufacturing. When the mold is manufactured, the metal distribution ratio is basically fixed. Designers must strive for reasonable distribution. If the distribution of unreasonable, resulting in uneven parts of the various parts of the profile, to the mold to bring some difficulties, even when the serious can not repair mode. For most molds, although the amount of metal has been determined, but the friction between the metal and the mold can be changed, so as to achieve the purpose of adjusting the flow rate of the metal. The friction between the metal and the mold consists of three parts: the contact friction between the metal and the die, the contact friction between the die and the working belt, and the relative movement between the metal and the metal. Improve the metal and mold surface friction conditions, can play to adjust the role of metal flow speed. Changing the amount of metal, the friction conditions, the length of the working belt and the extrusion speed can adjust the speed of the metal out of the die hole. Mold correction mainly focus on adjusting the proportion of metal distribution, contact friction conditions and the length of the work hole with a variety of effective ways to change the flow characteristics of the metal, the metal evenly out of the die hole to produce qualified profiles. In order to overcome the defects caused by the uneven flow of metal, we must study how to make the sections of the profile of the metal outflow rate of the same, which is the principle of mold design should follow, but also follow the basic principles of maintenance personnel. Although the impact of metal outflow hole speed factors are many, Ka Xin Aluminum for everyone summarized as two basic factors:
A. It is appropriate to supply the metal distribution flow for each part of the profile section. Whether the ratio of the cross-sectional area of each part of the profile to the metal flow rate of the corresponding supply part is equal;
B. When the metal flows, the size of the friction resistance, when the supply of a certain part of the metal parts of the more, the smaller the friction resistance, the part of the mold part of the hole out of the faster, the more slowly.
How to repair aluminum extrusion die, summed up in terms of: the correct analysis and judgment, a reasonable adjustment of metal flow rate.

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