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Heating and heat insulating feeder sleeve

A technology of thermal insulation riser sleeve and heating layer, applied in the field of metallurgical casting, can solve the problem that the thermal insulation performance cannot meet the actual production needs, etc., and achieve the effects of prolonging the solidification time, reducing the volume size, and increasing the temperature

Pending Publication Date: 2018-08-31
霍山县东胜铸造材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the heating and heat preservation performance of the existing riser sleeves can not meet the actual production needs. Now it is necessary to improve a heating and heat preservation riser sleeve with long solidification time, good feeding effect and small volume size.

Method used

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  • Heating and heat insulating feeder sleeve
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  • Heating and heat insulating feeder sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A heating and heat preservation riser sleeve, used for feeding into a casting mold A, comprising a base body 1, a heating layer 2, an insulation layer 3 and a protective layer 4, and a feeding cavity is opened inside the base body 1, and the feeding cavity The cavity communicates with the inside of the casting mold A, the heating layer 2 is arranged on the inner wall of the feeding cavity, the insulation layer 3 is coated on the outside of the base 1, and the protective layer 4 is coated on the outside of the insulation layer 3; one end of the heating layer 2 is connected to the base 1 The bottom is flush, and the other end of the heating layer 2 is located in the middle of the substrate 1 .

[0022] The insulation layer 3 is made of polystyrene composite material; the raw materials of polystyrene composite material include by weight: 50 parts of expandable polystyrene, 60 parts of polyurethane plastic, 40 parts of nitrile silicone rubber, and 2 parts of physical foaming...

Embodiment 2

[0025] A heating and heat preservation riser sleeve, used for feeding into a casting mold A, comprising a base body 1, a heating layer 2, an insulation layer 3 and a protective layer 4, and a feeding cavity is opened inside the base body 1, and the feeding cavity The cavity communicates with the inside of the casting mold A, the heating layer 2 is arranged on the inner wall of the feeding cavity, the insulation layer 3 is coated on the outside of the base 1, and the protective layer 4 is coated on the outside of the insulation layer 3; one end of the heating layer 2 is connected to the base 1 The bottom is flush, and the other end of the heating layer 2 is located in the middle of the substrate 1 .

[0026] The insulation layer 3 is made of polystyrene composite material; the raw materials of polystyrene composite material include by weight: 80 parts of expandable polystyrene, 40 parts of polyurethane plastic, 50 parts of nitrile silicone rubber, and 1 part of physical foaming ...

Embodiment 3

[0029] A heating and heat preservation riser sleeve, used for feeding into a casting mold A, comprising a base body 1, a heating layer 2, an insulation layer 3 and a protective layer 4, and a feeding cavity is opened inside the base body 1, and the feeding cavity The cavity communicates with the inside of the casting mold A, the heating layer 2 is arranged on the inner wall of the feeding cavity, the insulation layer 3 is coated on the outside of the base 1, and the protective layer 4 is coated on the outside of the insulation layer 3; one end of the heating layer 2 is connected to the base 1 The bottom is flush, and the other end of the heating layer 2 is located in the middle of the substrate 1 .

[0030] The insulation layer 3 is made of polystyrene composite material; the raw materials of polystyrene composite material include: expandable polystyrene 60kg, polyurethane plastic 55kg, nitrile silicone rubber 42kg, physical foaming agent 1.8kg, sodium lignosulfonate 1.8kg, di...

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Abstract

The invention discloses a heating and heat insulating feeder sleeve. The heating and heat insulating feeder sleeve is used for feeding in a casting mold. The heating and heat insulating feeder sleevecomprises a matrix, a heating layer, a heat insulating layer and a protecting layer. A feeding cavity is formed in the matrix and communicated with the interior of the casting mold, the heating layeris arranged on the inner wall of the feeding cavity, the matrix is coated with the heat insulating layer, and the heat insulating layer is coated with the protecting layer. The heat insulating layer is prepared from a polystyrene composite. The polystyrene composite is prepared from, by weight, 50-80 parts of expandable polystyrene, 40-60 parts of polyurethane plastic, 40-50 parts of nitrile silicone rubber, 1-2 parts of physical foaming agent, 1.5-2.5 parts of sodium lignosulphonate, 2-4 parts of disproportionated rosin, 10-20 parts of heat insulating vermiculite, 2-4 parts of polyacrylonitrile-based carbon fibers, 10-18 parts of diatomite, 2-4 parts of insulating glass beads, 8-16 parts of sepiolite powder, 1.5-2.5 parts of p-methylsulfonic acid, 2-4 parts of phosphoric acid and 40-60 parts of water.

Description

technical field [0001] The invention relates to the technical field of metallurgy and casting, in particular to a heating and heat preservation riser sleeve. Background technique [0002] The riser set in the casting process is a supplementary part added to the top or side of the casting to avoid defects in the casting, and the riser sleeve is one of the indispensable auxiliary materials in the casting process. Its main functions are exhaust, slag discharge, Molten steel feeding, in order to make the quality of the produced steel castings qualified, the riser sleeve must have good heating and heat preservation effects, the quality of the heating and heat preservation riser sleeve directly determines the qualified yield of castings and the cost of casting production. [0003] The heating and heat preservation riser sleeve material must have the following requirements: good heat preservation performance; good fire resistance; strong chemical stability at high temperature; suff...

Claims

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Application Information

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IPC IPC(8): B22C9/08B22D27/06
CPCB22C9/08B22D27/06
Inventor 卢世东叶纯华
Owner 霍山县东胜铸造材料有限公司
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