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Metal component casting process
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A technology of metal components and casting technology, which is applied in the direction of metal processing equipment, manufacturing tools, casting molding equipment, etc., and can solve problems such as complex deformation of casting shapes
Active Publication Date: 2015-07-08
上海浦宇铜艺装饰工程股份有限公司
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Abstract
Description
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Problems solved by technology
[0003] The purpose of the present invention is to address the shortcomings and problems existing in the prior art, and provide a metal component casting process capable of casting complex shapes, low cost, fast setting time, and large castings that are not easily deformed
Method used
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Effect test
Embodiment 1
[0019] Embodiment 1: a metal component casting process, it comprises the steps:
[0020] (1) Manufacture pattern: After polishing the finalized metal components or the newly produced product model, wipe the surface with pure cotton cloth, and then apply Vaseline evenly on the surface;
[0021] (2) Silicone outer mold: a silicone rubber mold made of silicone rubber by multi-layer smearing or three-dimensional pouring with a pouring port reserved, and gypsum is used as a foil mold for the outside.
[0022] (3) Wax mold making: Melt the paraffin, pour it into the silicone mold through the sprue, and form a hollow paraffin mold after cooling;
[0023] (4) Modeling: a. Pour plaster into the inner cavity of the hollow paraffin wax model, and perform surface finishing after the inner cavity gypsum solidifies to make a solid paraffin wax model; b. According to the shape of the solid paraffin wax model, weld the pouring port and the solid paraffin wax model Riser system, and then atta...
Embodiment 2
[0027] A metal component casting process, which includes the process steps described in embodiment 1, wherein, in the step (2), external resin is used as a lining mold; the resin quartz sand is the resin quartz sand used in summer. The weight ratio is: 120 100 parts of quartz sand, 1.6 parts of epoxy resin, and 0.7 parts of modified amine epoxy curing agent TDC-3361 were obtained.
Embodiment 3
[0029] A metal component casting process, which includes the process steps described in embodiment 1, wherein, in step (2), external gypsum is used as a lining mold; the resin quartz sand is resin quartz sand used in winter. The weight ratio is: 100 Purpose 100 parts of quartz sand, 2.0 parts of epoxy resin, and 1 part of epoxy resin high temperature resistant curing agent TDC-308.
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Abstract
The invention discloses a metal component casting process, which comprises the following steps: (1) manufacturing a mold sample, (2) manufacturing a silica gel outer mold, (3) manufacturing a wax mold, (4) molding, and (5) carrying out casting, shaking-out and finishing, wherein the molding process adopts combination of a lost-wax precision casting process, a plaster mold casting process and a self-hardening resin sand mold casting process to carry out modification grafting on a casting mold system so as to successfully develop a metal component casting process. Results of process performance tests, technical analysis and production applications of the new process show that the new casting method has the following characteristics that a casting surface is fine, casting quality is good, a specification size is large, flatness is good, cost is low, a production cycle is short, molding is rapid, collapsibility is good, the material can be subjected to dry regeneration and recovery utilization, pollution is less, energy sources are saved, and the bottleneck of metal component casting is solved. In addition, the process of the present invention is applicable for molding of various alloy castings.
Description
technical field [0001] The invention belongs to the technical field of casting technology, and in particular relates to a metal component casting technology. Background technique [0002] Casting process is one of the basic processes of modern machinery manufacturing industry. Metal component casting is to smelt metal into liquid metal that meets certain requirements, and pour it into the casting cavity to obtain predetermined shape, size and performance after cooling, solidification and cleaning. casting process. Commonly used casting techniques in the prior art include resin sand casting, lost wax precision casting, plaster casting and the like. The disadvantage of resin sand casting is that it is rough, the shape is not vivid, and complex shapes cannot be made; the shape of lost wax precision casting is delicate, and complex shapes can be completed, but its process is complex, costly, and takes a long time, and it can only make small products. It cannot be made into a l...
Claims
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Application Information
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