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Melting and casting method for metal handicrafts

A technology of melting and casting molding and handicrafts, applied in the direction of rotors, cylinders, heat exchange equipment, etc., can solve the problem that the molding is not easy to reach the ideal state, and achieve the effect of good controllability and formability

Active Publication Date: 2019-11-05
杭州朱炳仁铜艺股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of gaseous or liquid media, its molding is not easy to achieve the ideal state

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for melting and casting a metal handicraft, the specific steps are as follows:

[0020] Step (1) screening sawdust:

[0021] First, sieve the commercially available sawdust with a 5-mesh sieve to remove the coarse and oversized sawdust, and the maximum size of the remaining sawdust is 4mm;

[0022] Then, sieve with a 50-mesh sieve to remove fine and small sawdust, and the minimum size of the remaining sawdust is 0.3mm;

[0023] The size of the screened sawdust (the maximum size of each sawdust) is 0.3-4mm;

[0024] Step (2) Mix the muddy water into the screened wood chips and stir evenly, so that the moisture content of the wood chips reaches 50%, and put the wood chips into the iron box;

[0025] Step (3) melting the copper block in the crucible;

[0026] Step (4) pour the melted copper solution into the above-mentioned iron box that sawdust is housed;

[0027] After step (5) is initially cooled and solidified, take out the molded copper parts from the iro...

Embodiment 2

[0031] A method for melting and casting a metal handicraft, the specific steps are as follows:

[0032] Step (1) screening sawdust:

[0033] First, sieve the commercially available sawdust with a 10-mesh sieve to remove coarse and oversized sawdust, and the maximum size of the remaining sawdust is 2mm;

[0034] Then, sieve with a 100-mesh sieve to remove the fine and small sawdust, and the minimum size of the remaining sawdust is 0.15mm;

[0035] The size of the screened sawdust (the maximum size of each sawdust) is 0.15-2mm;

[0036] Step (2) Mix clear water into the screened sawdust and stir evenly, so that the moisture content of the sawdust reaches 300%, and put the sawdust into an iron bucket;

[0037] Step (3) melting the copper block in the crucible;

[0038] Step (4) pour the melted copper solution into the above-mentioned iron bucket that sawdust is housed;

[0039] After step (5) is initially cooled and solidified, take out the molded copper parts from the iron d...

Embodiment 3

[0043] A method for melting and casting a metal handicraft, the specific steps are as follows:

[0044] Step (1) screening sawdust:

[0045] First, the commercially available sawdust is sieved with a 7-mesh sieve to remove the coarse and oversized sawdust, and the maximum size of the remaining sawdust is 2.8mm;

[0046] Then, sieve with an 80-mesh sieve to remove fine and small sawdust, and the minimum size of the remaining sawdust is 0.18mm;

[0047] The size of the screened sawdust (the maximum size of each sawdust) is 0.18-2.8mm;

[0048] Step (2) the screened wood chips are mixed with lime water and stirred evenly so that the moisture content of the wood chips reaches 100%, and the wood chips are put into an aluminum box;

[0049] Step (3) melting the copper block in the crucible;

[0050] Step (4) pour the melted copper solution into the above-mentioned aluminum box that sawdust is housed;

[0051] After step (5) is initially cooled and solidified, take out the formed...

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PUM

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Abstract

The invention relates to a fusion casting method for metal art ware. A product manufactured by an existing method is unsatisfactory. The fusion casting method comprises the following steps of: screening sawdust, regulating moisture content of the sawdust to be 50-300%, and putting the sawdust into a container, wherein the maximum size of the screened sawdust is 2-4mm, and the minimum size of the screened dust is 0.15-0.3mm; melting a copper block, pouring molten copper into the container, and taking out the formed copper part after preliminarily cooling and compensating; cooling the copper part to the room temperature; and welding and coloring the copper part. Molten metal is naturally poured out and is cured in sawdust; molten copper naturally flows through gaps among the sawdust, so thatcontrollability and formability are better; and a finished product formed by moulds such as a conventional sand mould, a conventional wax mould and a conventional metal mould is better in flexibility.

Description

technical field [0001] The technical field of metal processing of the present invention relates to a melting and casting molding method of metal handicrafts. Background technique [0002] Decorations made of metal occupy an important position in the decoration industry. Traditional casting technology has always been the mainstream process of metal processing. This technology generally uses molds such as mud molds, sand molds, resin molds, wax molds, and metal molds. Die-casting is an indispensable process for traditional metal sculptures. Traditional metal sculptures use mold casting without exception, and the shape is not flexible enough. For example, the invention patent application with application number 201710876850.1 discloses a method for casting copper handicrafts in paraffin molds and its casting tundish, [0003] The Chinese Invention Patent No. 200810122100.6 discloses a moldless controllable metal melting and casting method. In this method, the metal material ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/00
CPCB22D19/00
Inventor 朱军岷朱炳仁
Owner 杭州朱炳仁铜艺股份有限公司