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Resin sand and foam plastic pattern casting method

A technology of foam plastic and resin sand, which is applied in the field of resin sand foam plastic mold casting, can solve the problems of prolonging the process flow and consuming a lot of time, and achieve the effect of reducing cost, saving cost and improving quality

Inactive Publication Date: 2011-08-17
CHANGSHA CHUSHUN REAL ESTATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to process limitations and production conditions, this will consume a lot of time in actual production and prolong the process flow.

Method used

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  • Resin sand and foam plastic pattern casting method
  • Resin sand and foam plastic pattern casting method
  • Resin sand and foam plastic pattern casting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] like figure 1 As shown, the foundry flask provided in this embodiment includes: a cavity 1, resin sand 2, an outer wall of the flask 3, a lower flask 4, a left flask 5, and a right flask 6; direction.

[0041] Prepared using Styrofoam such as figure 1 The water pump pattern shown in the middle cavity 1, take the mold and apply water-based paint on the surface of the cavity. First place the pattern in the lower flask 4, fill with resin sand, bond and compact with a binder, set the runner, place the left flask 5 and the right flask 6 above the lower flask and close together along the parting surface. Fill the resin sand with adhesive and compact it, and set the gate. Make a sign at the sandbox junction. Open the sand box along the moulding directions a, b, and c to take out the pattern, apply fire-resistant paint on the surface of the cavity, and then re-close the box according to the mark of the sand box after the paint is dry.

[0042] The metal melt is injected fr...

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Abstract

The invention provides a resin sand and foam plastic pattern casting method. A foam plastic pattern and resin sand are combined with the traditional sand mold casing when a pattern and a mold are split, and a box is opened, so as to replace a metal mold and a wood mold adopted in the traditional casting method, thereby saving the cost. After the pattern and the mold are split, and the box is opened, the foam plastic pattern is not melted by a metal melt and is taken out so as not to generate a large quantity of harmful gas and molten slags, thereby improving the quality of the inner surface and the outer surface of castings. An experiment shows that the foam plastic pattern used in the casting method can be continuously used for more than 30 times, so that the cost is reduced compared with the one-casting and one-molding evaporative pattern casting.

Description

technical field [0001] The invention relates to a casting method, in particular to a resin sand foam plastic mould casting method. Background technique [0002] Casting is a commonly used method of forming metal workpieces. It can quickly manufacture metal workpieces with complex structures. The prepared workpieces have high dimensional accuracy and smooth surfaces. Therefore, casting has also been used until now, and has been studied and improved. [0003] In traditional casting methods, wood molds or metal molds are generally used as patterns, and the patterns are put into a sand box, and whether to use multi-parting and / or multi-parting molds is selected according to the size, size or complexity of the pattern. sandbox. The pattern is placed in a sand box to make a sand mold, and then a metal melt is poured. The metal melt fills the sand mold, and after cooling, a metal casting is obtained. This casting method uses metal or wood as a pattern and wastes resources. [00...

Claims

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Application Information

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IPC IPC(8): B22C1/22B22C3/00B22C7/00
Inventor 代启良曾祥平龚维德
Owner CHANGSHA CHUSHUN REAL ESTATE
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