SU1033560A1 - Master alloy - Google Patents

Abstract

LIGUANIUM AREA TO USE THE FOLLOWING CASE and as the aluminum base - secondary aluminum alloy, preferably AK5M2, with the following ratio of components, weight. %: Silicomarg 25-40 nets O, Antimony Chloride 0.5-1.5 Calcium Secondary (L aluminum & The rest of the alloy

Description

Od 00

ate

SG5 The invention relates to metappurgia, in particular to the development of 1shgatur | The pre-assigned complex doping and moctiff multicomponent spacings: 1 min. Pigatura .1 is known for up-to-date howling sinov, containing silicon, copper, zinc and 1 epezo with the following ratio of scientific research institute of components, May,%: Silicon30,2-56,3 Mets16,1-35,6 Zinc1.0-5, O Zhepezo2 , 0–4.5 ApumiNalOne The disadvantage of a ligature is the nonexical mechanical and technological properties due to the increased content of ironstone. Also known is the ashonini-based G27 pigment G27 containing manganese and calcium n | %: Manganese 5-80 Calcium 5-25 Alumshy15-75 The introduction of metallic calcium into a liquid melt represents significant technological frailty due to its strong tendency to oxidize. A ligature is known (3 on an aluminum base containing cream 1 and manganese with the following ratio of components, May.%: Silicon 13 Manganese 7 Aluminum Others The disadvantage of this design is that it does not have the ability to grind and refine the alloy, which leads to a deterioration of its mechanical properties, if no additional modifying agents are introduced. In addition, known ligatures are smelted from prshnyh metals, which are lightweight and expensive. The aim of the invention is to accelerate the process of assimilation components and refining in the smelting of the ligature, ensuring the effect of long-term modifying of the finished alloy, which contributes to improving its mechanical properties when using non-deficient cheap batch materials. The goal is achieved by the aluminum-based pigment, including silicon manganese-containing material, additionally containing antimony and calcium chloride, as a manganese-silicon-containing material, silico-manganese, and as the aluminum base - a secondary aluminum alloy, 1fe read AK5M2, with the following ratio of constituents, May. %: Silikomanganets25-40 Antimony 0.5-3.0 Calcium chloride 0.5-1.5 Secondary aluminum rest The proposed composition creates a structure close to a complex eutectic, characterized by brittleness and low melting point, which accelerates the process of assimilation of the components. Antimony provides the ability of long-term moafing. Calcium chloride contributes to the refining of the melt from harmful materials. The use of silicomanganese makes it possible to replace more expensive and scarce materials: crystalline silicon, silumin, and manganese metal. The attachment of a secondary aluminum alloy of the type AK5M2 instead of primary aluminum and, per hour, silumin also saves more expensive and scarce materials. In tab. 1 shows the compositions of the predmeshem (compositions 1-5) and known (composition 6) pigatures.

T a b n in n a 1

PredlagayeV tabp, 2 tfiveaeny comparative aamibie chemical analysis gshgatu12, 0 33.6 3.2

0.9

11.6 29.4 3, O

1.0

9.8 19.0 0.5

1.7

rya and properties with paves after ooo

his various compositions.

I.T a b p and “a 2

steel

192

1.5

863

849 2OO

2.0 197 2.4

814

A higher manganese content in the provision of pigment than the known one allows to reduce the consumption of ligature by 3 times.

The impurities introduced by the secondary alloy and silicon-manganese (copper, Kap. Ifflfi, magnesium, iron and phosphorus) do not leave Sa pretsept due to their content in the alloy. In the smelting of the aluminum alloy AK5M2, a ligature of all the compositions was introduced with the aim of pozigEstvki alloy with manganese in each variant by approximately 0.3% to neutralize the harmful effects

Continued table. 2

gland. At a time, 0.1% was introduced, silicon and a small amount of other impurities. Due to the antimony ligature, the structure of the alloys 2-4 turned out to be modified.

Mechanical properties, especially plasticity, are higher than when smelting with the proposed ligature.

The proposed package gives a reduction in the cost of finished aluminum & ample alloy AK5M2 by 25 rubles. per ton of usable castings due to the reduction of pacxocia of primary materials: silumin, manganese, silicon.

Claims (1)

'An aluminum-based alloy, including silicon manganese-containing material, characterized by the fact that, with a chain to increase the mechanical properties of the ligature by refining and long-term modification and cost reduction, it additionally contains antimony and calcium chloride, as silicon manganese-containing material - sipi - 'komanganese, and as an aluminum base - a secondary aluminum alloy, preferably AK5M2, in the following ratio of components, weight. %: Silicomanganese Antimony Calcium Chloride Secondary Aluminum Alloy