CN-116285390-B - Model glue for forging and manufacturing three-dimensional copper relief and preparation method thereof

CN116285390BCN 116285390 BCN116285390 BCN 116285390BCN-116285390-B

Abstract

The preparation method of the model adhesive comprises the steps of taking, by mass, 3-5 parts of paraffin, 2-3 parts of nitrile rubber and 2-3 parts of aluminum silicate fiber, firstly taking 2.2-3.5 parts of paraffin, placing the paraffin into a first-stage working cavity of a pugging machine, kneading to form sheet-shaped particles, then entering a second-stage working cavity of the pugging machine, taking 1.8-2.2 parts of nitrile rubber, placing the nitrile rubber into the second-stage working cavity of the pugging machine, kneading together with the paraffin to form an ointment-like paste, then taking 1.8-2.2 parts of aluminum silicate fiber, adding the paste, kneading together to form an asbestos mixed paste with the aluminum silicate fiber uniformly distributed, and then sequentially adding the rest paraffin, the rest aluminum silicate fiber and the rest nitrile rubber into the asbestos mixed paste for kneading, thus obtaining the model adhesive. The novel plastic has stronger deformation and expansion performance, has wider application range without any additional condition, does not need heating when being repeatedly used, and has the beneficial effects incomparable with the prior art.

Inventors

YUAN HONGLI
SONG QIUFANG
SONG YUANYUAN

Assignees

河南科技大学

Dates

Publication Date: 20260508
Application Date: 20230220

Claims (3)

1. The model glue for forging and manufacturing the three-dimensional copper relief is characterized by comprising, by mass, 3-5 parts of paraffin, 2-3 parts of nitrile rubber and 2-3 parts of aluminum silicate fibers, wherein the diameter of the aluminum silicate fibers is 3-5 micrometers, and the length of the aluminum silicate fibers is 2-5 centimeters.
2. The method for preparing the model glue for forging and manufacturing the three-dimensional copper relief according to claim 1, which is characterized by comprising the following steps: (1) Taking 3-5 parts of paraffin, 2-3 parts of nitrile rubber and 2-3 parts of aluminum silicate fiber as a preparation material for standby; (2) 2.2-3.5 parts of paraffin are taken from the prepared materials and put into a first-stage working cavity of a pugging machine, and after being subjected to scouring and pressing, the paraffin enters a second-stage working cavity of the pugging machine; (3) Taking 1.8-2.2 parts of nitrile rubber from the prepared materials, and putting the nitrile rubber into a secondary working cavity of a pugging machine to be kneaded into paste with paraffin; (4) Adding 1.8-2.2 parts of aluminum silicate fibers into the paste from the preparation materials, and kneading the aluminum silicate fibers together with the paste until the aluminum silicate fibers are uniformly distributed in the paste; (5) Adding the residual paraffin in the prepared material into the aluminum silicate fiber mixed paste, continuously kneading for 13-16 min, and then entering the next step; (6) Adding the rest aluminum silicate fibers in the prepared materials into the aluminum silicate fiber mixed paste after kneading in the step (5), continuously superposing and kneading for 13-16 min, and then entering the next step; (7) And (3) adding the rest nitrile rubber in the prepared materials into the aluminum silicate fiber mixed paste kneaded in the step (6), and continuing kneading for 13-16 min to obtain a mixture, namely the model rubber.
3. The method for producing a model paste for forging and producing a three-dimensional copper relief according to claim 2, wherein the flaky particles in the step (2) are scale-like particles.

Description

Model glue for forging and manufacturing three-dimensional copper relief and preparation method thereof Technical Field The invention belongs to the technical field of copper relief making, and particularly relates to model glue for forging and making three-dimensional copper relief and a preparation method thereof. Background The forging and manufacturing copper relief (the forging cylinder relief for short) is the process of forging and carving a relief pattern with high and low relief on the surface of a copper blank by adopting a chisel carving tool (a hammer, a chisel and the like) or equipment (a numerical control hydraulic forging machine tool), and finally manufacturing an exquisite copper relief handicraft. In the forging, chiseling and forming process of the surface of the copper billet, the copper billet needs to be provided with a supporting material (also called model glue because the supporting material is expected to be similar to the product model after the forging is finished) to receive and absorb energy from a chiseling tool (a hammer, a chisel and the like) or equipment, so that the copper billet obtains expected deformation in the process of changing into a finished product. In the traditional process, a sand bag is usually used as a model glue, but the sand bag cannot be tightly combined with a copper blank, so that in the forging forming process of changing the copper blank into a finished product, too much sand is filled in the sand bag, sand flows too little in the sand bag to possibly cause the sand bag to deform insufficiently along with a copper plate, and too little sand is filled, too much sand mobility can appear to cause the sand to deform accurately along with the copper blank, so that the forming precision and quality of the final copper relief artwork are affected. In order to solve the technical problems, chinese patent document with the patent number ZL201410144290.7 discloses a shaping paste and a preparation method thereof, and the shaping paste has good application effect in a two-dimensional forged copper relief manufacturing process of a metal plate. However, it has been found during use that it is not well suited for use in the forging of three-dimensional copper relief with closed cavities having a three-dimensional structure, in particular in the process of numerical control hydraulic forging of three-dimensional copper relief. The main reason for this disadvantage is that after the sealed cavity is filled with the shaping paste disclosed in ZL201410144290.7, the deformation requirement of the three-dimensional copper relief cannot be met when the density of the shaping paste is reduced to the limit in the process of forging and forming the copper relief with certain modeling patterns. With the improvement of aesthetic standards of people, the patterns of the copper relief artwork with the three-dimensional structure (three-dimensional copper relief for short) are more and more abundant and various, and meanwhile, with the maturity of numerical control technology, the technology of manufacturing the copper relief by adopting a numerical control hydraulic forging mode is increasingly developed in order to provide the manufacturing efficiency of finished products, and the use of the model glue in the prior art for enriching the patterns of the three-dimensional copper relief patterns is not fully satisfied, so that great limitation is brought. Disclosure of Invention The invention aims to provide model glue for forging and manufacturing a three-dimensional copper relief and a preparation method thereof. In order to achieve the purpose, the technical scheme adopted by the invention is that the model glue for forging and manufacturing the three-dimensional copper relief is mainly composed of, by mass, 3-5 parts of paraffin, 2-3 parts of nitrile rubber and 2-3 parts of aluminum silicate fibers. A preparation method of model glue for forging and manufacturing three-dimensional copper relief comprises the following steps: (1) Taking 3-5 parts of paraffin, 2-3 parts of nitrile rubber and 2-3 parts of aluminum silicate fiber as a preparation material for standby; (2) 2.2-3.5 parts of paraffin are taken from the prepared materials and put into a first-stage working cavity of a pugging machine, and after being subjected to scouring and pressing, the paraffin enters a second-stage working cavity of the pugging machine; (3) Taking 1.8-2.2 parts of nitrile rubber from the prepared materials, and putting the nitrile rubber into a secondary working cavity of a pugging machine to be kneaded into paste with paraffin; (4) Adding 1.8-2.2 parts of aluminum silicate fibers into the paste from the preparation materials, and kneading the aluminum silicate fibers together with the paste until the aluminum silicate fibers are uniformly distributed in the paste; (5) Adding the residual paraffin in the prepared material into the asbestos mixed paste, continuously kneading for 13-16 min, and