CN106345974A

CN106345974A - Iron model sand coated casting method for concrete pump bending pipe and mould

Info

Publication number: CN106345974A
Application number: CN201610598451.9A
Authority: CN
Inventors: 李国平
Original assignee: Jiaozuo Gude Joint Machinery Manufacturing Co Ltd
Current assignee: Jiaozuo Gude Joint Machinery Manufacturing Co Ltd
Priority date: 2016-07-27
Filing date: 2016-07-27
Publication date: 2017-01-25

Abstract

The invention discloses an iron model sand coated casting method for a concrete pump bending pipe and a mould. Molten iron is poured in a forming cavity of the iron model sand coated mould according to the condition that the pipeline direction and the gravity direction of the concrete pump bending pipe are consistent to perform casting. The mould comprises a plurality of iron models arranged vertically, wherein bending pipe forming semi-cavities, sprue gates and exhaust ports are formed in the iron models; the sprue gates and the exhaust ports are communicated with the bending pipe forming semi-cavities respectively; and the bending pipe forming semi-cavities, the sprue gates and the exhaust ports are arranged vertically. Compared with the prior art, the mould provided by the invention performs casting by a vertical method, has small buoyancy of inner models through reasonable arrangement of the positions of the bending pipe forming semi-cavities, the sprue gates and the exhaust ports, avoids buoyancy displacement, and has high casting precision and high product quality.

Description

A kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe and mould

Technical field

The present invention relates to a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe and mould.

Background technology

At present, bend pipe casting Iron Mould Coated Sand mould used is upper and lower swage structure, and its forming elbow chamber is horizontal row Row, for example, Chinese patent 201420588671.x disclosure.During level casting, molten iron enters forming elbow intracavity can be right The inner mold of Iron Mould Coated Sand produces larger buoyancy, leads to inner mold to be subjected to displacement, causes bend pipe wall thickness the situation of uneven distribution.

Content of the invention

For the problems of the prior art, the invention aims to providing a kind of side of Sand-Faced Metal Mould Casting concrete pump bend pipe Method and mould.

In order to achieve the above object, the technical scheme is that a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe, ferrum The forming cavity that type covers sand mo(u)ld tool is consistent with gravity direction according to the pipeline direction of concrete pump bend pipe, is then injected into molten iron and is cast.

Further, 0 ~ 45 ° of the angle of the midpoint tangent line of the forming cavity of Iron Mould Coated Sand mould and gravity direction.

Further, the air vent of Iron Mould Coated Sand mould is connected with the top of forming cavity.

Further, the sprue gate of Iron Mould Coated Sand mould is connected with the big arc first half of forming cavity.

A kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe is it is characterised in that including some swages being vertically arranged, described Be provided with forming elbow half chamber, sprue gate and air vent in swage, described sprue gate and air vent respectively with forming elbow half chamber Communicate, described forming elbow half chamber, sprue gate and air vent are all vertically arranged.

Further, described forming elbow half chamber be two, air vent is connected with forming elbow half top of chamber, sprue gate with curved It is connected at pipe molding half chamber orthodrome.

Further, the big arc portion position in two forming elbow half chambeies relatively and is symmetricly set in swage.

Further, described swage both sides are provided with two forming elbow half chambeies.

Further, swage side is provided with alignment pin, opposite side is provided with location hole, and alignment pin and location hole match.

Further, it is provided with filter placing trough in described sprue gate.

Compared with prior art, the mould of the present invention is cast by the way of vertical, by forming elbow half chamber, cast Mouth and the reasonable setting of vent position, buoyancy suffered by inner mold is less, does not result in buoyancy displacement, and casting accuracy is high, product matter Measure.

Brief description

Fig. 1 is embodiment 1 structural representation.

Fig. 2 is embodiment 2 structural representation.

Fig. 3 is embodiment 2 side view.

Specific embodiment

With reference to the accompanying drawings and examples the present invention is further described.

Embodiment 1

A kind of bend pipe Iron Mould Coated Sand mould, including two swages being vertically arranged 1 in left and right, is provided with bend pipe in described swage 1 Type half chamber 2, sprue gate 3 and air vent 4, described sprue gate 3 and air vent 4 are communicated with forming elbow half chamber 2 respectively, described bend pipe Molding half chamber 2, sprue gate 3 and air vent 4 are all vertically arranged.

Embodiment 2

A kind of bend pipe Iron Mould Coated Sand mould, including some swages 1 being vertically arranged, is provided with forming elbow half chamber in described swage 2nd, sprue gate 3 and air vent 4, described sprue gate 3 and air vent 4 are communicated with forming elbow half chamber 2 respectively, described forming elbow half Chamber 2, sprue gate 3 and air vent 4 are all vertically arranged；Swage 1 both sides are provided with two forming elbows half chamber 2；Two bend pipes become The big arc portion position in type half chamber 2 relatively and is symmetricly set in swage 1；Air vent 4 is connected with forming elbow half chamber 2 top, cast Mouth 3 is connected with the orthodrome of forming elbow half chamber 2.Swage 1 side is provided with alignment pin 6, opposite side is provided with location hole 7, fixed Position pin 6 and location hole 7 match.It is provided with filter placing trough 5 in described sprue gate 3.

Embodiment 3

Two swages in embodiment 1 are combined, then make forming cavity (two forming elbows half of Iron Mould Coated Sand mould Chamber is combined one forming cavity of formation) consistent with gravity direction according to the pipeline direction of concrete pump bend pipe, it is then injected into molten iron and enter Row casting.

Embodiment 4

Two swages in embodiment 1 are combined, the midpoint tangent line of the forming cavity of Iron Mould Coated Sand mould and gravity direction 45 ° of angle, is then injected into molten iron and is cast.

Embodiment 5

Several swages in embodiment 2 are combined, the midpoint tangent line of the forming cavity of Iron Mould Coated Sand mould and gravity direction 0 ° of angle, be then injected into molten iron and cast.

All simple deformation made in the case of without departing from core of the present invention or modification each fall within the protection of the present invention Scope.

Claims

1. a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe is it is characterised in that the forming cavity of Iron Mould Coated Sand mould is according to concrete pump The pipeline direction of bend pipe is consistent with gravity direction, is then injected into molten iron and is cast.

2. a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 1 is it is characterised in that Iron Mould Coated Sand mould The midpoint tangent line of forming cavity of tool and 0 ~ 45 ° of the angle of gravity direction.

3. a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 1 is it is characterised in that Iron Mould Coated Sand mould The air vent of tool is connected with forming cavity.

4. a kind of method of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 1 is it is characterised in that Iron Mould Coated Sand mould The sprue gate of tool is connected with the big arc first half of forming cavity.

5. a kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe is it is characterised in that include some swages being vertically arranged, described ferrum Be provided with forming elbow half chamber, sprue gate and air vent in type, described sprue gate and air vent respectively with forming elbow half chamber phase Logical, described forming elbow half chamber, sprue gate and air vent are all vertically arranged.

6. a kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 5 is it is characterised in that described bend pipe becomes Type half chamber is two, and air vent is connected with forming elbow half chamber, and sprue gate is connected with forming elbow half chamber orthodrome.

7. a kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 2 is it is characterised in that two bend pipes become The big arc portion position in type half chamber relatively and is symmetricly set in swage.

8. a kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 1 is it is characterised in that described swage two Side is provided with two forming elbow half chambeies.

9. a kind of mould of Sand-Faced Metal Mould Casting concrete pump bend pipe according to claim 1 is it is characterised in that swage side sets It is equipped with alignment pin, opposite side is provided with location hole, alignment pin and location hole match.

10. a kind of bend pipe Iron Mould Coated Sand mould according to claim 1 is it is characterised in that be provided with described sprue gate Filter placing trough.