CN2450441Y

CN2450441Y - Spheroidal iron chain wheel casting stack

Info

Publication number: CN2450441Y
Application number: CN 00240980
Authority: CN
Inventors: 孙兆宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-10
Filing date: 2000-11-10
Publication date: 2001-09-26
Anticipated expiration: 2010-11-10

Abstract

The utility model relates to a spheroidal iron chain wheel casting stack. Single cases which are respectively in the shape of a multi-layer chain wheel are stacked into the stack, which are provided with fixed iron cases, and then the chain wheel casting stack is formed. A chain wheel cavity, a casting cup, a cross casting gate and a down gate which are processed by casting sand are arranged in each chain wheel casting single case. The utility model has the advantages of simple process, short production period and no leftover waste material by using the case and the chain wheel cast by material of nodular cast iron or rare magnesium; the hardness, the wear resistant property, etc. of the chain wheel are better than chain wheels which are made of common carbon steel.

Description

The folded railway carriage or compartment of magnesium iron sprocket wheel casting

The utility model relates to the folded railway carriage or compartment of magnesium iron sprocket wheel casting, belongs to casting mould.

At present, common sprocket wheel, mostly adopt carbon steel, its processing technology is to forge or vapour cuts the circular blanks that is processed into respective diameters, yet Vehicle Processing becomes the semi-finished product blank, the gear hobbing finished product, the sprocket wheel that this employing common process is produced, not only processing technology is complicated, and aspects such as its abrasion resistance, intensity and working life, and is all poor with the sprocket wheel of spheroidal graphite cast iron, diluted-thorium-magnesium alloy casting.Yet, as adopting spheroidal graphite cast iron, diluted-thorium-magnesium alloy casting sprocket wheel, because sprocket wheel single-piece area is little and thin, adopt conventional single case moulding, can increase the moulding occupation area on the one hand, on the other hand, if it is little to run into the single-piece area, the sprocket wheel that sprocket weight is light, its molten casting iron consumption hour, the pouring operation time is long, and casting rate is slow, cause the reduction of nodularization power, abnormal nodularizing, influence quality of product.Therefore, the magnesium iron sprocket wheel replaces the carbon steel sprocket wheel to be difficult to promote.

The purpose of this utility model is: design the folded railway carriage or compartment of a kind of magnesium iron sprocket wheel casting, use this case, qualified sprocket wheel is cast in liquid once-through.

The utility model is achieved in that the sprocket wheel that produces of at first will seeking survival is processed into the single case of moulding with fine aluminum; select for use ventilating performance good in single case; the molding sand that fire-resistant intensity is high is made molding material; be processed into chain wheel type chamber, pouring cup, sprue hole and mould cast gate; with the stacked stacked case of the single case of this casting, the stacked number of plies is 5 layers to 10 layers again, for preventing molten iron casting back extruding; the single carton deformed of moulding, folded case adds the protection of iron case.Adopt this case to produce sprocket wheel, a plurality of acceptable product of once can casting.

Describe in detail bright below in conjunction with accompanying drawing furtherly to the utility model.

Accompanying drawing 1 and accompanying drawing 2 are structural representations of an embodiment of the present utility model.

Among the figure: the single case of 1 sprocket wheel moulding, 2 molding sand, 3 pouring cups, 4 sprue holes, 5 chain wheel type chambers, 6 iron casees, 7 top trenches

Referring to accompanying drawing, be processed into the single case 1 of sprocket wheel moulding with the high-quality aluminium, good with ventilating performance in the single case 1 of sprocket wheel moulding, the sprocket wheel technical parameter that the molding sand that fire-resistant intensity is high is processed is as required made chain wheel type chamber 5, pouring cup 3, sprue hole 4, top trench 7, with the single case of sprocket wheel moulding alignment stack about in the of 1, external application iron case 6 is reinforced, sprocket wheel casting case, spheroidal graphite cast iron or diluted-thorium-magnesium casting technology routinely again, casting sprocket wheel.

Adopting this sprocket wheel casting case, is that raw material is made sprocket wheel with spheroidal graphite cast iron or diluted-thorium-magnesium, and simple, with short production cycle, the no leftover bits of technology, sprocket wheel surface hardness height, wear-resisting property are good.

Claims

1, the folded railway carriage or compartment of a kind of magnesium iron sprocket wheel casting, it is characterized in that: stacked by the single case of sprocket wheel moulding (1), external application iron case (6) is fixing.

2, by the folded railway carriage or compartment of the described magnesium iron sprocket wheel casting of claim 1, it is characterized in that: single case (1) inner-use type sand of sprocket wheel moulding (2) is processed into chain wheel type chamber (5), pouring cup (3), sprue hole (4), top trench (7).

3, by the folded railway carriage or compartment of the described magnesium iron sprocket wheel casting of claim 1, it is characterized in that: the stacked number of plies of the single case of sprocket wheel moulding (1) is 5 to 10 layers.