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Furan resin self-hardening heating insulated feeder and preparation method thereof

A technology of furan resin and thermal insulation riser, applied in the field of foundry, can solve the problems of poor thermal insulation effect, insufficient heat generation of thermal insulation riser, high riser feeding, etc., and achieves slow burning speed, good thermal insulation effect and fast ignition speed. Effect

Inactive Publication Date: 2017-01-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the traditional heating and heat preservation riser is difficult to meet the high feeding requirements of high-quality castings due to insufficient heat generation and poor heat preservation effect, and provides a furan resin self-hardening heating and heat preservation riser and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Embodiment 1: In this embodiment, a self-hardening heating and thermal insulation riser of furan resin is composed of 16-18 parts of aluminum powder, 8-10 parts of carbon powder, 5-6 parts of magnesium powder, 2-3 parts of magnesium powder according to the mass fraction. parts potassium nitrate, 8~10 parts iron oxide powder, 3~5 parts sodium chloride, 19~22 parts mixture of vermiculite and expanded perlite, 24~38 parts silica sand, 1~2 parts furan resin, 0.5~0.6 parts toluene made of sulfonic acid.

[0013] In this embodiment, furan resin is used as a binder, and toluenesulfonic acid is used as a hardener.

specific Embodiment approach 2

[0014] Embodiment 2: The difference between this embodiment and Embodiment 1 is that a self-hardening heating insulation riser of furan resin is composed of 16 parts of aluminum powder, 8 parts of carbon powder, 5 parts of magnesium powder, 2 parts potassium nitrate, 8 parts iron oxide powder, 3 parts sodium chloride, 19 parts mixture of vermiculite and expanded perlite, 37 parts silica sand, 1.5 parts furan resin, 0.5 part toluene sulfonic acid. Others are the same as the first embodiment.

specific Embodiment approach 3

[0015] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that a self-hardening heating insulation riser of furan resin is composed of 18 parts of aluminum powder, 10 parts of carbon powder, 6 parts of magnesium by mass fraction. Powder, 3 parts potassium nitrate, 9.4 parts iron oxide powder, 5 parts sodium chloride, 22 parts mixture of vermiculite and expanded perlite, 24 parts silica sand, 2 parts furan resin, 0.6 part toluene sulfonic acid. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a furan resin self-hardening heating insulated feeder and a preparation method thereof, and belongs to the field of casting. The problems that according to a traditional heating insulated feeder, heating is not enough, the insulation effect is poor, the requirement for high-quality castings is hard to meet, and the feeder has high feeding are solved. The feeder is prepared from aluminum powder, carbon dust, magnesium powder, nitrate, ferric oxide powder, sodium chloride, a mixture of vermiculite and expanded perlite, silica sand, furan resin and toluenesulfonic acid. The method comprises the steps of 1, weighing according to mass fractions; 2, blank mixing; 3, compaction molding in a feeder mold, and room temperature hardening. The feeder is used for casting.

Description

technical field [0001] The invention belongs to the field of casting, and in particular relates to a self-hardening heating insulation riser of furan resin and a preparation method thereof. Background technique [0002] In the production of sand casting, the thermal insulation riser can play the role of feeding, exhausting and slag discharge. When the performance of the riser is not good, it often causes casting defects such as shrinkage cavity, shrinkage porosity and slag inclusion, resulting in scrapped castings. Reduce production efficiency. With the continuous improvement of the quality requirements of castings, higher requirements are also put forward for the heating and thermal insulation risers. Due to the shortcomings of insufficient heat generation and poor thermal insulation effect, the traditional heating and thermal insulation riser is difficult to meet the high requirements of feeding, slag discharge and exhaust. Therefore, it is necessary to develop a new typ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/14B22C9/08B22F1/00B22F3/02B22F5/00
CPCC04B35/14C04B35/66B22C9/088B22F3/02B22F5/00C04B2235/3427C04B2235/3272C04B2235/422C04B2235/444C04B2235/443C04B2235/401C04B2235/402B22F1/10
Inventor 石德全高桂丽康凯娇许家勋陈志俊王傲
Owner HARBIN UNIV OF SCI & TECH
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