Lost foam casting flat plate member model coating process
A lost foam casting and model technology, applied in the direction of casting molding equipment, casting molds, casting mold components, etc., can solve problems such as deformation of flat parts, and achieve the effects of ensuring flatness, simple operation, and easy mastery
Inactive Publication Date: 2013-05-15
TIANJIN LIXINSHENG ADVANCED CASTING
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a simple and feasible model coating process to solve the deformation problem of flat parts in the process of painting
Method used
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[0011] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0012] Such as figure 1 Shown, a kind of lost foam casting flat piece model coating process of the present invention comprises the following steps:
[0013] 1) Place the flat model flatly on the shelf, and the operator uses a brush to dip the paint on the upper surface of the model and the surrounding S1 step. In this step, the cumulative thickness of the paint applied to the model is preferably 1mm;
[0014] 2) After brushing, move the shelf to the drying room to dry the model. During the drying process, press the four corners of the model with pressing blocks in the S2 step. Since the model after painting has high humidity and the overall strength is relatively soft, In this step, the painted model is moved into the drying room...
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Abstract
The present invention discloses a simple and feasible model coating process so as to solve the deformation problem of a flat plate member during a paint coating process. The lost foam casting flat plate member model coating process is characterized in that a flat plate member model is placed on a shelf, and coating is performed on the upper surface of the flat plate member model; after completing the coating, the shelf is moved to a drying room to dry the model, wherein pressing blocks are adopted to press four corners of the model during the drying process; after the paint is completely dried, the model is flipped, the lower surface and the periphery of the model are coated, wherein the lower surface and the periphery of the model are not coated in the previous treatment; and after completing the coating, the model is dried, wherein the pressing blocks are adopted to press the four corners of the model during the drying process. With the lost foam casting flat plate member model coating process, the flat plate member deformation before shaping is basically avoided, a flatness of the model is ensured, and the process has characteristics of simple operation and easy mastering.
Description
technical field [0001] The invention relates to a lost foam casting method, in particular to a model coating process for a large flat piece of lost foam casting. Background technique [0002] Lost foam casting (also known as solid casting) is made of foam plastic (EPS, STMMA or EPMMA) polymer material to form a solid mold with exactly the same structure and size as the part to be cast, after dipping refractory coating (strengthening , bright and clean, air-permeable) and dried, buried in dry quartz sand and subjected to three-dimensional vibration modeling, pouring the molten metal into the casting mold sand box under negative pressure, so that the polymer material model is heated and gasified and drawn out, and then is cast Liquid metal replaces the one-time molding casting new technology formed after cooling and solidification to produce a new casting method for castings. Compared with traditional casting technology, lost foam casting technology has unparalleled advantage...
Claims
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Login to View More IPC IPC(8): B22C23/02B22C7/02B22C9/04
Inventor 喻磊殷吉龙冯晓松张付成
Owner TIANJIN LIXINSHENG ADVANCED CASTING