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Composite mould for manufacturing casting fireproof materials

A technology of melting and casting refractory materials and composite molds, which is applied in the field of melting and casting refractory materials, can solve the problems of easy cracking of products and easy collapse of boxes, and achieve the effects of improving quality, saving energy, and solving easy collapse boxes

Active Publication Date: 2014-05-28
RUITAI MATERIALS TECHNOLOGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problems existing in the prior art, the object of the present invention is to provide a composite mold for producing fused and cast refractory materials. The existing technical problems of easy collapse of boxes and easy cracking of products

Method used

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  • Composite mould for manufacturing casting fireproof materials
  • Composite mould for manufacturing casting fireproof materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This example illustrates a composite mold for producing fused-cast zirconium corundum products with a size of 250×400×1200 mm. Refer to attached Figure 1-2 As shown, the composite mold is prepared through the following steps:

[0021] Riser 8 adopts thermal insulation heating element to make template (containing 2.2-3.5 wt% silicon fiber, 72-85wt% quartz sand, 2.5-5.0wt% aluminum powder, 2.5-6.0wt% ferric oxide, 1.2 -2.5 manganese dioxide, 0.8-1.5wt% furan resin and 0.6-1.5wt% phenolic resin), according to the drawing shape set by the process, 400 (high) × 400 × 40mm (thick) (2 pieces) And 400 (height) × 250 × 40 mm (thickness) (2 pieces) thermal insulation and heating body boards, which are fastened and assembled together with steel wires with a diameter of 2mm.

[0022] A hollow negative pressure forming model 1 (dimensions 250×400×1200 mm) will be made according to the shape of the product (a metal model, such as an aluminum or aluminum alloy model), will be conne...

Embodiment 2

[0027] This embodiment exemplarily illustrates the composite mold for producing fused-cast zirconium corundum products 250×400×1200mm, refer to the attached Figure 1-2 As shown, the composite mold is prepared through the following steps:

[0028] Riser 8 adopts resin sand mold riser 8 (furan resin 3wt%, quartz sand 97wt%), according to the drawing shape set by the process, the internal shape of riser 8 made of resin sand mold is 600 (height) × 400 × 250mm, The wall thickness around the riser 8 is 30mm.

[0029] A hollow negative pressure forming model 1 (dimensions 250×400×1200 mm) will be made according to the shape of the product, connected to the vacuum pumping chamber 2, and a softening heating device will be used to soften the EVA film 3 (EVA with a vinyl acetate content of 32wt%) Plastic film) is softened and covered on the outer surface of the model 1, and the air in the special model 1 and between the special film 3 and the special model 1 is removed through the ...

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Abstract

A combined mold for manufacturing fusion-cast refractory is provided. The combined mold comprises a mold body and a riser head. Said mold body is set inside a heat preservation container filled with vibratory compacted heat-insulating material. A transition plate is set between said riser head and mold body. A heat-insulating cap filled with dry sand is set on periphery of the riser head. And said mold body is obtained by negative pressure forming process. The combined mold solve the problem, such as that sand crushing occurs easily and products crack easily well when the negative pressure forming process is applied to a process for fusion-casting refractory. To apply the combined mold to manufacture fusion-cast refractory can save energy, protect environment and improve product appearance quality.

Description

technical field [0001] The invention belongs to the technical field of melting and casting refractory materials, and more specifically, the invention relates to a composite mold for producing melting and casting refractory materials. Background technique [0002] Fused and cast refractory products are important lining materials for melting furnaces in the glass industry. The models used in the production of fused and cast refractories mainly include graphite molds, resin-bonded quartz sand sand molds and water glass-bonded quartz sand sand molds. Graphite molds are expensive and difficult to process; resin-bonded quartz sand molds are self-hardening at room temperature, easy to make integral sand molds, and have high precision in product appearance and size, but the sand mold has high technical content and costs higher than water glass; water glass The combined quartz sand sand mold has low technical content, is easy to manufacture, and has low cost, but its disadvantage is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B7/00B29C63/22
CPCB28B7/00B22C9/02
Inventor 冯中起龙希成陈龙张鑫罗凯罗峰
Owner RUITAI MATERIALS TECHNOLOGY CO LTD
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