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Apr 18 - posted by xiu umin, 1 like, 0 followers, 1 member, 0 comments, 1 viewOne of the basic principles of injection moulding is that the hot material enters the Furniture Mould(FURNITUREMOULD) https://www.furnituremould.com/
where it cools rapidly to a temperature at which... moreOne of the basic principles of injection moulding is that the hot material enters the Furniture Mould(FURNITUREMOULD) https://www.furnituremould.com/
where it cools rapidly to a temperature at which it hardens sufficiently to maintain the contour of the stamp. For this reason, the temperature of the furniture mould is important because it controls a portion of the entire moulding cycle. Although the melt moves more freely in the hot mould, it is necessary to increase the cooling time so that the cured moulded article can be discharged. On the other hand, when the melt cures immediately in the cold mould, it may not reach the end of the cavity completely. Therefore, the trade-off between the two extremes must be accepted in order to achieve the best moulding cycle.
Units for circulation of water (or other fluids) are commercially achievable. The device is fully connected to the mould by a flexible hose, and the heat of the furniture mould can be kept within limits. The use of plastic moulds in connection with cold water supply selection techniques is unlikely to result in intensive heat treatment.
This is basically the mould designer's obligation to provide a suitable circulation strategy within the mould. Usually, the simplest strategy is to drill longitudinally through the furniture mould. On the other hand, this is not necessarily the most effective mould method.
On the other hand, once drilling is used for the flow of the coolant, these should not be too close to the indentation (less than 15 mm), as this may result in significant temperature changes throughout the process, resulting in moulding difficulties.
The design of the circuit is often complicated because it is not possible to drill very close channels near any other holes in the same template. It can be recalled that the template has a large number of holes or grooves to accommodate the thimble, the guide post, the guide sleeve, the gate bushing, the insert, and the like. The proximity of the flow pattern to how close the other hole depends largely on the depth of the hole required for the desired flow pattern. When drilling deep runners, the borehole tends to deviate from its prescribed path. The usual guiding device is that for drilling holes up to 149 mm in depth, the flow pattern must be no less than 3 mm to any one hole. For deeper flow patterns, this allowance is increased to 6 mm.
In order to obtain the perfect achievable position of the circuit, it is a good practice to lay the circuit as early as possible in the design. An alternative mould comprising a thimble, a guide bushing or the like can then be positioned accordingly.
Click Air Cooler Mould https://www.furnituremould.com/
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Mar 22 - posted by xiu umin, 1 like, 0 followers, 1 member, 0 comments, 1 viewThis type of failure occurs in many Household Product Mould(FURNITUREMOULD) https://www.furnituremould.com/product/daily-necessities-mould/
, showing an area that is usually close to the door, which... moreThis type of failure occurs in many Household Product Mould(FURNITUREMOULD) https://www.furnituremould.com/product/daily-necessities-mould/
, showing an area that is usually close to the door, which has an uneven lining appearance. It may be reminiscent of a groove on a phonograph record, or it may appear to appear as an irregular line pattern, roughly a semicircle around the door.
The reason for unfolding the mark is that the pressurization of the last part of the household product mould is slow. As the back pressure in the household product mould increases, the rate at which the material flows through the gate decreases, and the molten plastic does not have a sufficiently low viscosity to provide good consistency of the mold surface.
In order to overcome this drawback, it is important to quickly fill the mold of the household product at one time. If the machine runs out of power before the filling is complete, the last material can only enter the household product mould at a very slow rate. The pressure in the hydraulic system will gradually increase and will be transferred to the material entering the mold of the household product for further pressurization.
Click Daily Necessities Mould https://www.furnituremould.com/product/daily-necessities-mould/
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