SU38A1 - The method of constriction of cast iron products - Google Patents

Description

The proposed method of coating cast iron with tin is intended to give a solid, non-flowing half-day on cast iron, which is especially important when applied to the tinning of home cast-iron cookware to replace its enameling - extremely fragile and harmful to health.

Half a cast iron is usually produced either after the preliminary decarburization of the surface layer of the cast iron products or after the preliminary coating of the surface of the cast iron products with a layer of electroplated iron; The latter method is recognized both cheaper and more reliable.

In either case, at half-time, pure tin is usually used, and itself is carried out half-way in the manner used by tillers when naschatyr or a solution of zinc chloride with ammonium is used.

But a half of pure tin, as instructed by the inventor, is not durable, and to make half a day more durable, non-flowing under strong heating and able to withstand even rough cleaning, the inventor suggests to tin with not tin pure, but tin alloy

with nickel in the ratio of 6 nickel spools to 1 pound of tin. In making the alloy, nickel is taken in the form of sawdust, fused with tin in a crucible in the usual way and, in manufacturing, I is poured through a sieve to shatter. I This vessel is made by I in the usual way using zinc chloride, and the cast iron products must first be prepared from the surface subject to 1 half day, thorough mechanical cleaning and deposition on this surface of the first layer of electrolytic iron. In factory mass tinning of dishes, it is prepared from the surface by deposition of electrolytic iron and is passed through a molten mixture of tin and nickel in the indicated proportion, and then through a bath with melted lard to make it shine.

SUBJECT OF INVENTION.

The method of tinning cast iron products with a preliminary build-up of an iron layer by electroplating, characterized in that for half a day, an alloy of tin with nickel is used.