Molybdenum phenolic resin precoated sand material for instrument casting

A technology of molybdenum phenolic resin and coated sand, which is applied in the direction of casting molding equipment, casting molds, manufacturing tools, etc., can solve the problems that it is difficult to meet the actual casting performance and the high performance requirements of coated sand, so as to increase the universality , Improve the yield and delay the gas generation speed

Inactive Publication Date: 2016-11-09
无锡市三峰仪器设备有限公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coated sand used for instrument casting has high requirements on the performance of coated sand. When the existing coated sand is used for instrument casting, it is difficult to meet the requirements of actual casting performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: a molybdenum phenolic resin coated sand material for instrument casting, including the following raw materials in parts by weight: 1.5 parts of molybdenum phenolic resin, 0.04 part of coupling agent, 0.4 part of urotropine, 0.3 part of curing agent, 0.7 parts of alkali-free glass fiber, 0.4 parts of microcrystalline paraffin, 1.5 parts of montmorillonite, 2 parts of manganese slag, 8 parts of corundum sand, 7 parts of iron ore, and 90 parts of dead burnt magnesia.

Embodiment 2

[0013] Embodiment 2: a molybdenum phenolic resin coated sand material for instrument casting, including the following raw materials in parts by weight: 1 part of molybdenum phenolic resin, 0.02 part of coupling agent, 0.2 part of urotropine, 0.2 part of curing agent, 0.5 parts of alkali-free glass fiber, 0.2 parts of microcrystalline paraffin, 1 part of montmorillonite, 1 part of manganese slag, 5 parts of corundum sand, 5 parts of iron ore, and 85 parts of dead burnt magnesia.

Embodiment 3

[0014] Embodiment 3: a molybdenum phenolic resin coated sand material for instrument casting, including the following raw materials in parts by weight: 2 parts of molybdenum phenolic resin, 0.06 part of coupling agent, 0.5 part of urotropine, 0.5 part of curing agent, 1 part of alkali-free glass fiber, 0.5 part of microcrystalline paraffin, 2 parts of montmorillonite, 3 parts of manganese slag, 10 parts of corundum sand, 10 parts of iron ore, 95 parts of dead burnt magnesia.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A molybdenum phenolic resin precoated sand material for instrument casting comprises, by weight, 1-2 parts of molybdenum phenolic resin, 0.02-0.06 part of a coupling agent, 0.2-0.5 part of urotropin, 0.2-0.5 part of a curing agent, 0.5-1 part of alkali-free glass fiber, 0.2-0.5 part of microcrystalline wax, 1-2 parts of montmorillonoid, 1-3 parts of manganese ore slag, 5-10 parts of emery, 5-10 parts of soldering iron ore sand and 85-95 parts of dead burnt magnesite sand. Compared with conventional precoated sand, the molybdenum phenolic resin precoated sand material for instrument casting, has the performance of reducing the gas generation speed and restraining nitrogen generation besides the performance of the conventional precoated sand, nitrogen holes of castings can be effectively reduced, and accordingly the yield of a casting instrument is increased. The universality of the precoated sand from iron castings to steel castings is improved, the production rate of the castings is increased, the cost of modeling materials of a casting enterprise is saved, and good high-temperature resisting casting performance is achieved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a molybdenum phenolic resin coated sand material with high temperature resistance for instrument casting. Background technique [0002] Coated sand is molding sand or core sand whose surface is covered with a layer of solid resin film before molding. There are two coating processes for the preparation of coated sand: cold method and hot method: the cold method dissolves the resin with ethanol, and adds urotropine during the sand mixing process, so that the two are coated on the surface of the sand grains, and the ethanol volatilizes to obtain Coated sand; the thermal method is to preheat the sand to a certain temperature, add resin to melt it, stir to coat the resin on the surface of the sand, add urotropine aqueous solution and lubricant, cool, crush, and sieve to obtain coated sand . Coated sand for foundry is mainly used for steel castings and iron castings. [0003] With t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/00B22C1/02B22C1/22
CPCB22C1/00B22C1/02B22C1/22
Inventor 薛江
Owner 无锡市三峰仪器设备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products