CN103317099A

CN103317099A - Overlapping pouring technology for casting clutch pressure plate and automobile brake plate

Info

Publication number: CN103317099A
Application number: CN2013102907146A
Authority: CN
Inventors: 魏如宏
Original assignee: HUBEI TAIDA MACHINERY MANUFACTURING Co Ltd
Current assignee: HUBEI TAIDA MACHINERY MANUFACTURING Co Ltd
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2013-09-25

Abstract

The invention relates to the field of casting, and particularly relates to an overlapping pouring technology for casting a clutch pressure plate and an automobile brake plate. The overlapping pouring technology is characterized by comprising the following steps of: molding, tool manufacturing, shaping and assembly, wherein the molding is implemented as follows: a module is designed and manufactured according to a dimensional requirement of casting graph paper, and comprises a bottom module, a main module and a cover module, pouring, water inlet and feeding systems which are communicated into a whole up and down are respectively designed; the tool manufacturing is implemented as follows: metal tools such as a bottom plate, a sleeve roll and a cover plate are manufactured according to the sand type size and height of each casting; the shaping is implemented as follows: a model is assembled on a core shooting machine, the air pressure of the core shooting machine is utilized for filling the sand pressure into the model, the model is taken out so as to reserve after being heated, cured and shaped; the assembly is implemented as follows: a metal bottom plate tool is placed firstly, a bottom is placed, the sleeve roll is sleeved, a main model is placed, a sleeve is sleeved, a tool cover plate is covered, a pouring feeding cup is arranged, a mould weight is pressed, the pouring is waited, and the whole step is finished. Through the adoption of the technical scheme, the casting efficiency is improved, the technological product yield is high, the size accuracy of the casting is high, the appearance of the casting piece is good, and the hardness of a casting material is stable.

Description

A kind of overlapping pouring technology of casting clutch compressing disc and automobile brake disc

Technical field

The present invention relates to casting field, be specifically related to a kind of overlapping pouring technology of casting clutch compressing disc and automobile brake disc.

Background technology

Conventional pouring technology generally adopts the individual layer cast, and defective workmanship is: efficient is low, and floor space is large, and product yield is low, and the running gate system occupation proportion is large, is great energy waste; Casting dimension is unstable, and the case that rises is serious; Castings material hardness is unstable, temperature impact in season; Material density is not enough, and physical property is on the low side, and the too fast feeding of the feeding insufficient pressure of individual layer and setting time is not enough easily to be occurred due to the defective such as loose, shrinkage porosite.

?

Summary of the invention

The purpose of this invention is to provide a kind of process that the plate formula cast members such as clutch compressing disc and automobile brake disc are designed to overlapping pouring molten iron of casting, this method is applicable to the overlay film sand mold, resin bonded sand mould, the class mold castings such as waterglass sand mold, according to the height of cast member and varying in size of profile, be designed to every layer of single-piece of 2 to 30 layers or the process of every layer of many overlapping cast.

The present invention is achieved like this: a kind of overlapping pouring technology of casting clutch compressing disc and automobile brake disc is characterized in that technique is divided into molding, frock making, type processed and assembling; Molding: require the design molding according to drawing of rough casting paper size, mould divides bed die, main mould, cover mold, designs respectively cast, water inlet, the system of risers of ganging up up and down disjunctor; Frock making is by the sand mold size of each foundry goods with highly make the metal frocks such as base plate, cover volume, cover plate; Type processed: model group is installed to core shooter, utilize the air pressure of core shooter that sand is pressed in the full model, after the moulding that is heating and curing, taking-up is piled up for subsequent use; Assembling: set first the metal base plate frock, put die bed well, put volume, put again principal mode well, put again volume, so one deck principal mode, the assembling of one deck cover volume, determine the principal mode number of plies according to the foundry goods height, until reach the requirement number of plies, cover again the frock cover plate, lay the casting compencation cup, press foundary weight, wait to be castly, whole step is finished.

Owing to having adopted technique scheme, improved casting efficient, product yield is high, and casting dimension accuracy is high, and the good castings material hardness of casting of appearance of cast is stable.

The specific embodiment

The invention will be further described below in conjunction with example.

A kind of overlapping pouring technology of casting clutch compressing disc and automobile brake disc is divided into molding, frock making, type processed and assembling; Molding: require the design molding according to drawing of rough casting paper size, mould divides bed die, main mould, cover mold, designs respectively cast, water inlet, the system of risers of ganging up up and down disjunctor; Frock making is by the sand mold size of each foundry goods with highly make the metal frocks such as base plate, cover volume, cover plate; Type processed: model group is installed to core shooter, utilize the air pressure of core shooter that sand is pressed in the full model, after the moulding that is heating and curing, taking-up is piled up for subsequent use; Assembling: set first the metal base plate frock, put die bed well, put volume, put again principal mode well, put again volume, so one deck principal mode, the assembling of one deck cover volume, determine the principal mode number of plies according to the foundry goods height, until reach the requirement number of plies, cover again the frock cover plate, lay the casting compencation cup, press foundary weight, wait to be castly, whole step is finished.

This technique 1, the casting efficient that improved, the duration of pouring has been shortened in overlapping concentrated cast, has reduced the melting loss of elements amount, strengthened material stability, saved a large amount of castings place, in same large workshop, output is several times or even tens times of individual layer cast.

2, product yield is high, and overlapping cast is concentrated and used system of risers, and the molten iron utilization rate is up to more than 90%, pour into a mould high by 20% than individual layer, and it is good that feeding effect and effect are all poured into a mould than individual layer, and product yield is higher than individual layer cast more than 20% simultaneously, has saved a large amount of energy consumptions.

3, casting dimension accuracy is high: solidifying has preferably intensity from hard sand mold, put closely again the metal frock, so that iron liquid nothing in being poured into process of setting has the type of rising defective, cause this and guaranteed dimensional accuracy, high because of dimensional accuracy again, the allowance of foundry goods is few, has also saved simultaneously material and energy consumption, greatly reduces the casting cost.

4, casting of appearance of cast is good: behind meticulous precoated sand or the resin sand curing molding, mold cavity surface is bright and clean seamless, adds close-fitting frock, without the defective such as any rise case fleshiness or sand holes are coarse.

5, castings material hardness is stable: the foundry goods of overlapping cast cools off in frock, corresponding having played is incubated balanced cooling effect, so, no matter be in the summer of sweltering heat or the winter of cold, the natural thermal insulation cooling of the foundry goods of overlapping cast in frock is so that the hardness uniformity.

6, material density is high, good physical performance: the foundry goods of overlapping cast is incubated cool time in frock longer, the sufficient feeding time is arranged, utilize again the feeding ventilation process system of ganging up up and down, enough feeding pressure is arranged, so that foundry goods is without defectives such as loose, shrinkage porosites, density is high, the advantage of good physical performance.

7, clutch compressing disc and the automobile brake disc dynamic balance performance of this technique cast are good: because casting dimension accuracy is high, outward appearance fineness is good, the machined accurate positioning, the foundry goods good concentricity, be that casting density is consistent again, without loose, shrinkage porosite, shrinkage cavity phenomenon, reduced the foundry goods amount of unbalance.

Claims

1. an overlapping pouring technology of casting clutch compressing disc and automobile brake disc is characterized in that technique is divided into molding, frock making, type processed and assembling; Molding: require the design molding according to drawing of rough casting paper size, mould divides bed die, main mould, cover mold, designs respectively cast, water inlet, the system of risers of ganging up up and down disjunctor; Frock making is by the sand mold size of each foundry goods with highly make the metal frocks such as base plate, cover volume, cover plate; Type processed: model group is installed to core shooter, utilize the air pressure of core shooter that sand is pressed in the full model, after the moulding that is heating and curing, taking-up is piled up for subsequent use; Assembling: set first the metal base plate frock, put die bed well, put volume, put again principal mode well, put again volume, so one deck principal mode, the assembling of one deck cover volume, determine the principal mode number of plies according to the foundry goods height, until reach the requirement number of plies, cover again the frock cover plate, lay the casting compencation cup, press foundary weight, wait to be castly, whole step is finished.