Refractory materials and refractory equipment for aluminum alloy melt casting, and method for preparing refractory equipment
A technology of refractory material and aluminum alloy, applied in the field of preparation of refractory equipment, can solve the problems of non-durability, easy cracking, high temperature resistance strength, difficult to completely dry, etc., and achieves controllable thermal shock resistance and good thermal shock resistance. , Fast slag removal effect
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[0022] Example 1
[0023] A refractory equipment used for aluminum alloy melting and casting, with high thermal shock resistance, medium heat preservation performance and high strength performance, such as hot-top casting shunt discs and launder preforms, which are made of refractory components including the following parts by weight. Made of material:
[0024] Aluminum silicate fiber powder 35.4~55 Talc powder 2.4~10.4
[0025] Mullite powder 2.5~12.6 Zircon powder 1.0~11.8
[0026] Silica sol solution 13.5~16.8.
[0027] Its specific gravity is 1.5~2.4Kg / cm3.
[0028] The refractory equipment improves the surface finish and heat preservation performance, reduces aluminum staining, improves the convenience of slag removal, and prevents the aluminum liquid from secondary pollution.
[0029] The preparation process of the refractory equipment is: weigh various materials according to the weight ratio of the components of the refractory equipment, mix the aluminum silicate fiber powd...
Example Embodiment
[0030] Example 2
[0031] A refractory equipment used for aluminum alloy melting and casting. It has the characteristics of high thermal shock resistance, high insulation performance, medium strength, low specific gravity, etc., such as the transfer injection pipe and the hot top casting heat preservation cap. It is composed of the following parts by weight ratio Composition made of refractory materials:
[0032] Aluminum silicate fiber powder 50~80.6 Talc powder 5.4~12.2
[0033] Mullite powder 2.5~13 Zircon powder 1.0~14
[0034] Silica sol solution 15.5~17.8.
[0035] Its specific gravity is 1.0~2.0Kg / cm3.
[0036] The refractory equipment reduces the content of crystal water; improves the high temperature resistance strength to ensure that high temperature preheating can be performed to completely remove the crystal water during use; the service life is increased, and the production cost is reduced. Reduce or eliminate the use of asbestos products that are extremely harmful to...
Example Embodiment
[0038] Example 3
[0039] A refractory equipment used for aluminum alloy melting and casting. It has the characteristics of long-lasting high temperature resistance, medium thermal shock resistance, medium insulation performance, and low specific gravity. For example, the automatic flow control distribution boat-shaped funnel of molten aluminum is composed of the following parts by weight ratio The composition is made of refractory materials:
[0040] Aluminum silicate fiber powder 46.4~75 Talc 3.5~8.4
[0041] Mullite powder 3~14.6 Zircon powder 2.5~12.8
[0042] Silica sol solution 16~17.8.
[0043] Its specific gravity is 1.5~1.8Kg / cm3.
[0044] The refractory equipment makes up for the insufficiency of the clay material and the Insural140 material; does not use paint or uses a thinner coating to achieve a refractory material with good non-stick aluminum performance; improves the service life and reduces the production cost.
[0045] The preparation method is the same as that o...
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