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Rapid manufacturing method for resin casting die

A technology for casting molds and manufacturing methods, which can be applied to casting and molding equipment and other directions, can solve the problems of high manufacturing costs and shorten the mold making cycle, and achieve the effects of reducing processing costs, shortening processing time, and ensuring processing accuracy.

Inactive Publication Date: 2016-08-10
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can quickly produce resin casting molds, which shortens the mold production cycle. Compared with wooden molds, the service life of this mold has been greatly improved, and is close to metal molds. Molding equipment produces resin mold prototypes, which are relatively expensive to manufacture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment one, the rapid manufacturing method of resin casting punch, its specific steps are:

[0015] 1) According to the casting process drawing of the casting, draw the three-dimensional diagram of the polystyrene foam concave mold used in the resin casting punch. The surface size of the polystyrene foam concave mold is based on the size of the casting mold punch, leaving 1mm The machining allowance is processed by CNC washing equipment to produce the polystyrene foam concave mold used to manufacture the resin casting convex mold:

[0016] 2) First coat a layer of surface wear-resistant mixture on the inner surface of the prepared concave mold to form a 2.5mm thick surface wear-resistant layer; the surface wear-resistant mixture consists of epoxy resin, curing agent, toughening agent, coupling agent , a light stabilizer and a mixture of wear-resistant powders with a particle size of 280 to 400 meshes, the mass ratio of the above mixture is epoxy resin: curing agent:...

Embodiment 2

[0021] Embodiment two, the rapid manufacturing method of resin cast die, its specific steps are:

[0022] 1) Draw the three-dimensional diagram of the polystyrene foam material convex mold used for the resin casting concave mold according to the casting process diagram of the casting, and the surface size of the convex mold is determined by the surface size of the casting concave mold;

[0023] 2) The surface size of the polystyrene foam convex mold used to manufacture the casting concave mold is based on the size of the casting mold concave mold, leaving a machining allowance of 1 to 1.5mm, which is processed by CNC washing equipment for Styrofoam punches for making resin casting dies:

[0024] 1) According to the casting process drawing of the casting, draw the three-dimensional diagram of the polystyrene foam material convex mold used in the resin casting concave mold. The surface size of the polystyrene foam material convex mold is based on the size of the casting mold con...

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PUM

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Abstract

The invention provides a rapid manufacturing method of a resin casting mold, which adopts the following steps: 1) For the casting mold to be manufactured is a convex mold or a concave mold, respectively use polystyrene foam material to process the corresponding concave mold on a numerical control processing device Or the convex mold, the size of the processed concave mold or convex mold is based on the surface size of the casting mold convex mold or concave mold, leaving a machining allowance of 1 to 1.5mm; 2) The concave mold produced in step 1) The surface of the mold or punch is coated with a layer of surface resin material, and then a layer of back layer resin material is coated on the surface of the surface resin material. After the resin material is cured, the polystyrene foam material is removed to obtain the blank of the resin casting mold; 3) Process the blank to the design size of the resin casting mold after secondary positioning on the numerical control processing equipment to obtain the resin casting mold; 4) Assemble the prepared resin casting mold on the mold plate to obtain the entire mold. The invention has simple manufacturing process, short production cycle and low production cost.

Description

technical field [0001] The invention provides a rapid manufacturing method of a resin casting mold, which belongs to the technical field of casting. Background technique [0002] At present, in the domestic casting production process, except for a few metal molds, most of the casting molds used for modeling are made of red pine or other materials by hand. The existing metal and wood casting molds have complicated manufacturing methods. , The processing cycle is long, and it is difficult to meet the growing market demand of the foundry industry. [0003] Patent No. ZL201010577170.8 discloses a rapid manufacturing method for resin casting molds, which can use rapid prototyping equipment to make resin prototypes, and then make mold cavities through normal temperature vulcanized silicone rubber, and manufacture resin molds by manual pasting. This method can quickly produce resin casting molds, which shortens the mold production cycle. Compared with wooden molds, the service lif...

Claims

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Application Information

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IPC IPC(8): B22C7/00
CPCB22C7/00
Inventor 张勇
Owner SHANDONG UNIV OF TECH