key points in solidification process of gray cast iron and nodular cast iron (2)

2. UNIDIRECTIONAL NUCLEATION In the solidification process of the metal-nonmetal system, the nonmetallic substance can be the core of metal solidification, while metal cannot be the core of nonmetallic substance solidification, which is called One-way nucleation.

key points in solidification process of gray cast iron and nodular cast iron

The final properties of iron castings are mainly determined by the structure formed during solidification. For example, the thermal properties of gray iron are affected by the shape, size, and quantity of graphite in its structure. The mechanical properties depend on the number of primary Austenite Dendrites, the morphology of graphite and the size of […]

iron mold sand coating production line for castings

KEY POINTS FOR SELECTION OF SAND-COATED IRON MOULD CASTING PRODUCTION LINE

1.First of all, matching with the product should be considered when choosing the production line of the sand-coated iron mold. 2. Iron sand-coated production line should have: A high-quality iron sand-coated production line must have the primary factors of the high running rate of equipment, mature technology, high rate of the genuine product.

chrome grinding ball risers

Function and design of Riser for foundry

1. Take a pinch. 2. Exhaust. 3.Slag collection. 4.Logo for the metal filling cavity. Casting riser is a part designed to supply the shrinkage of casting during solidification to prevent shrinkage cavity and shrinkage porosity.

high chrome cast iron

Characteristics and application of high chrome wear resistant cast iron

High Chrome cast iron containing 12.30% chrome and 2.4-3.6% carbon can be highly alloyed and heat treated to obtain martensite or austenite or mixed matrix and special carbides of chrome. This particular carbide is a hexagonal system of Me7C3 with hardness as high as HVL200. 1600, much higher than the cementite type of carbides and common mineral […]

molten iron melting induction furnace

Importance to treat the gray iron melted by electric induction furnace

This company is a large state-owned enterprise, the production of many varieties of gray iron castings, the previous use of Cupola melting equipment, the production of gray iron castings have been very stable quality. In order to further implement the national requirements for Energy Conservation and emission reduction, optimize the environment, and achieve high efficiency […]

ductile iron ball

Points for MELTING SCRAP FOR DUCTILE IRON

In the traditional production process of ductile iron, about 10% carbon scrap is generally used for the burden. This paper only deals with some problems that should be paid attention to in the process of producing nodular cast iron in an induction furnace after increasing the proportion of carbon scrap used. According to the production […]

ball mill balls

Key points of foundry technology of coated sand (2)

Heating Temperature 200-300, curing time 30-150s, shot pressure 0.15-0.60 MPA. The sand core with the simple shape and the resin coated sand with good fluidity can select lower shooting pressure, lower heating temperature for thin sand core, longer curing time when the heating temperature is low. The resin used in coated sand is phenolic resin. […]

resin sand coated casting production line

Key points of foundry technology of coated sand (1)

Resin coated sand casting has a long history in the field of casting, and the output of casting is quite large, but there are many problems when using resin coated sand casting to produce precision steel castings, such as sand burn, cold shut, and air hole. How to solve these problems remains to be explored. […]

high chrome wear-resistant cast iron mill ball production plant

Characteristics and application of high chrome wear resistant cast iron

High chrome cast iron containing 12.30% chrome and 2.4-3.6% carbon can be highly alloyed and heat treated to obtain martensite or austenite or mixed matrix and special carbides of chrome. This particular carbide is a hexagonal system of Me7C3 with hardness as high as HVL200. 1600, much higher than the cementite type of carbides and common mineral […]