CN102423793A - Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold - Google Patents

Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold Download PDF

Info

Publication number
CN102423793A
CN102423793A CN2011104034003A CN201110403400A CN102423793A CN 102423793 A CN102423793 A CN 102423793A CN 2011104034003 A CN2011104034003 A CN 2011104034003A CN 201110403400 A CN201110403400 A CN 201110403400A CN 102423793 A CN102423793 A CN 102423793A
Authority
CN
China
Prior art keywords
casting
die
sand
thermal
wooden mold
Prior art date
Application number
CN2011104034003A
Other languages
Chinese (zh)
Inventor
田美荣
张坤
于普涟
Original Assignee
济南重工股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 济南重工股份有限公司 filed Critical 济南重工股份有限公司
Priority to CN2011104034003A priority Critical patent/CN102423793A/en
Publication of CN102423793A publication Critical patent/CN102423793A/en

Links

Abstract

The invention discloses a casting process for manufacturing a feeding bushing and a discharging pipe by sharing one wooden mold, which comprises the following steps of: manufacturing the wooden mold and a core box, wherein the same part of the feeding bushing and the discharging pipe shares one wooden mold; starting shaping after the wooden mold is manufactured, and manufacturing a core; brushing a coating after the core is assembled, and closing the box; checking whether floating sand exists in a sprue or not and whether a sand box is tight or not; timely pouring; putting a heat preservation covering agent; performing heat preservation in a sand mold after a casting is poured; performing sand shakeout after the casting is subjected to heat preservation for required time, and cleaning sand on the surface of the casting and in a cavity; performing heat treatment, and annealing a blank after the sand is cleaned completely; and polishing to reach a design size, and brushing paint. The wooden wood is universal after the actual sample part of the wooden mold is replaced by a movable block, and blanks of two castings, namely the feeding bushing and the discharging pipe can be manufactured by sharing one set of wooden mold, so the cost of the wooden mold is saved, and work efficiency is improved.

Description

Charging lining and discharge nozzle are made the casting technique of a shared die model

 

Technical field

The present invention relates to a kind of charging lining and discharge nozzle and make the casting technique of a shared die model, belong to casting technology field.

Background technology

In the charging lining in the common MQY2440 grinding machine and the processing technology of discharge nozzle, generally be to make two cover die model and core boxes.Ten minutes waste material and manpower, also labor time.

Summary of the invention

To above-mentioned deficiency, the invention provides the casting technique that a kind of charging lining and discharge nozzle are made a shared die model.

The present invention realizes through following technical scheme: a kind of charging lining and discharge nozzle are made the casting technique of a shared die model, and this technology may further comprise the steps:

1) makes die model and core box, the shared die model of charging lining and discharge nozzle same section;

The making of 2) moulding, coremaking, die model begin moulding, coremaking after making and finishing;

3) mould assembling, fuse have been assembled the back swabbing and have been carried out mould assembling;

4) cast, cast in time after the mould assembling;

5) put thermal-insulating covering agent;

6) casting parts thermal insulation cooling behind the casting pouring, is incubated in sand mold;

7) cleaning, the casting parts thermal insulation time to after carry out the sand in knockout, cleaning cast(ing) surface and the die cavity;

8) heat treatment, after sand was cleaned out, blank carried out annealing in process;

9) polishing is polished into design size, then mopping after the annealing.

Make in the process of die model and core box in the said step 1), the allowance of setting is 14mm, and setting the die model reduced scale is 1.8%~2.0%.

Said step 2) in the moulding in, the making of coremaking, is die joint, confirms the thermal center size, the design rising head according to casting thickness with plane on the flange of discharge nozzle; The number of rising head is five and evenly distributes; Select for use and float pearl making insulating riser sleeve; Running gate system is taked the staged cast, sprue Φ 80mm * 1, ingate Φ 50mm * 6 two-layer distributions, bag eye Φ 45mm * 1.

Pouring temperature is 1570 ℃ in the said step 4), and be 150S the duration of pouring, and in the casting process, watering slows down to three of rising head/a period of time waters slowly.

When the initial joining day of thermal-insulating covering agent was molten steel rises to riser height 1/3 place in the said step 5), the thermal-insulating covering agent addition was 1/2 of a thermal-insulating covering agent gross weight, and remaining thermal-insulating covering agent is as safeguarding that rising head uses, up to the rising head top do not reveal red till.

Temperature retention time is 24h in the said step 6).

Annealing temperature in the said step 8) is 870 ℃~890 ℃, and temperature retention time is 8h~9h.

The beneficial effect that this law is bright: technological design is simple, calculates accurately, and qualification rate is high; Technical capability for the designer is less demanding; Technological operation is simple, convenient.Because it is general that the die model full pattern partly changes behind the loose piece, sharedly can make the blank of charging lining and two kinds of foundry goods of discharge nozzle once the cover die model, practiced thrift the expense of die model, improved operating efficiency.

Description of drawings

Fig. 1 makes the flow chart of the casting technique of a shared die model for charging lining and discharge nozzle.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

1) makes die model and core box, the shared die model of charging lining and discharge nozzle same section; Die model is made one of full pattern, two of core boxes, and No. one core is done 1/2 core box, and No. two core box is done 1/6 core box;

The making of 2) moulding, coremaking, die model begin moulding, coremaking after making and finishing;

3) mould assembling, fuse have been assembled the back swabbing and have been carried out mould assembling; After the mould assembling, have or not floating sand in the inspection cast gate, whether sandbox is fastening;

4) cast, cast in time after the mould assembling; Pouring temperature is 1570 ℃, and be 150S the duration of pouring, and in the casting process, watering slows down to three of rising head/a period of time waters slowly;

5) put thermal-insulating covering agent; The initial joining day of thermal-insulating covering agent, the thermal-insulating covering agent addition was 1/2 of a thermal-insulating covering agent gross weight when being molten steel rises to riser height 1/3 place, and remaining thermal-insulating covering agent is as safeguarding that rising head uses, up to the rising head top do not reveal red till;

6) casting parts thermal insulation cooling behind the casting pouring, is incubated in sand mold; Temperature retention time is 24h;

7) cleaning, the casting parts thermal insulation time to after carry out the sand in knockout, cleaning cast(ing) surface and the die cavity;

8) heat treatment, after sand was cleaned out, blank carried out annealing in process; Annealing temperature is 870 ℃~890 ℃, and temperature retention time is 8h~9h;

9) polishing is polished into design size, then mopping after the annealing.

Make in the process of die model and core box, the allowance of setting is 14mm, and setting the die model reduced scale is 1.8%~2.0%.

In the making of moulding, coremaking, be die joint,, confirm the thermal center size according to casting thickness with plane on the flange of discharge nozzle, the design rising head, the number of rising head is five and evenly distributes; In order to prolong the feeding time of molten steel, guarantee to delay the final setting time of rising head, select for use and float pearl making insulating riser sleeve.

Running gate system is taked the staged cast, sprue Φ 80mm * 1, ingate Φ 50mm * 6 two-layer distributions, bag eye Φ 45mm * 1;

Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.

Claims (7)

1. charging lining and discharge nozzle are made the casting technique of a shared die model, and this technology may further comprise the steps:
1) makes die model and core box, the shared die model of charging lining and discharge nozzle same section;
The making of 2) moulding, coremaking, die model begin moulding, coremaking after making and finishing;
3) mould assembling, fuse have been assembled the back swabbing and have been carried out mould assembling;
4) cast, cast in time after the mould assembling;
5) put thermal-insulating covering agent;
6) casting parts thermal insulation cooling behind the casting pouring, is incubated in sand mold;
7) cleaning, the casting parts thermal insulation time to after carry out the sand in knockout, cleaning cast(ing) surface and the die cavity;
8) heat treatment, after sand was cleaned out, blank carried out annealing in process;
9) polishing is polished into design size, then mopping after the annealing.
2. casting technique as claimed in claim 1 is characterized in that: make in the process of die model and core box in the said step 1), the allowance of setting is 14mm, and setting the die model reduced scale is 1.8%~2.0%.
3. casting technique as claimed in claim 1 is characterized in that: in the moulding said step 2), the making of coremaking, be die joint with plane on the flange of discharge nozzle, confirm the thermal center size according to casting thickness, the design rising head; The number of rising head is five and evenly distributes; Select for use and float pearl making insulating riser sleeve; Running gate system is taked the staged cast, sprue Φ 80mm * 1, ingate Φ 50mm * 6 two-layer distributions, bag eye Φ 45mm * 1.
4. casting technique as claimed in claim 1 is characterized in that: pouring temperature is 1570 ℃ in the said step 4), and be 150S the duration of pouring, and in the casting process, watering slows down to three of rising head/a period of time waters slowly.
5. casting technique as claimed in claim 1; It is characterized in that: when the initial joining day of thermal-insulating covering agent is molten steel rises to riser height 1/3 place in the said step 5); The thermal-insulating covering agent addition is 1/2 of a thermal-insulating covering agent gross weight; Remaining thermal-insulating covering agent is as safeguarding that rising head uses, up to the rising head top do not reveal red till.
6. casting technique as claimed in claim 1 is characterized in that: temperature retention time is 24h in the said step 6).
7. casting technique as claimed in claim 1 is characterized in that: the annealing temperature in the said step 8) is 870 ℃~890 ℃, and temperature retention time is 8h~9h.
CN2011104034003A 2011-12-07 2011-12-07 Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold CN102423793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104034003A CN102423793A (en) 2011-12-07 2011-12-07 Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104034003A CN102423793A (en) 2011-12-07 2011-12-07 Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold

Publications (1)

Publication Number Publication Date
CN102423793A true CN102423793A (en) 2012-04-25

Family

ID=45957864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011104034003A CN102423793A (en) 2011-12-07 2011-12-07 Casting process for manufacturing feeding bushing and discharging pipe by sharing one wooden mold

Country Status (1)

Country Link
CN (1) CN102423793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480805A (en) * 2012-06-12 2014-01-01 鞍山华士金属制品有限公司 Hinge beam cast and casting process thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003080347A (en) * 2001-06-11 2003-03-18 General Motors Corp <Gm> Method for casting engine block
CN1757458A (en) * 2005-11-01 2006-04-12 宜昌船舶柴油机厂 Method for casting cast steel intermediate product of diesel engine
CN101422816A (en) * 2007-11-02 2009-05-06 中信重工机械股份有限公司 Exposed gear casting no-choke riser-head technique design
CN102069148A (en) * 2010-12-21 2011-05-25 宁夏共享集团有限责任公司 Method for casting brake disc for high-speed locomotive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003080347A (en) * 2001-06-11 2003-03-18 General Motors Corp <Gm> Method for casting engine block
CN1757458A (en) * 2005-11-01 2006-04-12 宜昌船舶柴油机厂 Method for casting cast steel intermediate product of diesel engine
CN101422816A (en) * 2007-11-02 2009-05-06 中信重工机械股份有限公司 Exposed gear casting no-choke riser-head technique design
CN102069148A (en) * 2010-12-21 2011-05-25 宁夏共享集团有限责任公司 Method for casting brake disc for high-speed locomotive

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
中国机械工程学会铸造分会: "《铸造手册—铸造工艺(第2版)》", 31 January 2003, 机械工业出版社 *
国家机械工业委员会: "《初级木模工工艺学》", 30 September 1988, 机械工业出版社 *
汤国华: "芯盒造型串芯立铸工艺的应用", 《铸造技术》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480805A (en) * 2012-06-12 2014-01-01 鞍山华士金属制品有限公司 Hinge beam cast and casting process thereof

Similar Documents

Publication Publication Date Title
CN104439053A (en) Wax mold manufacturing method of melting mold precision-casting bridge shell
CN100515600C (en) Hot precoated sand stack casting process
CN103742536B (en) The casting method of high-lead bronze copper sheathing
CN102554125B (en) Precision casting method of aluminum gearbox
CN104791401A (en) Iron-type coated-sand casting disc brake caliper body and producing method thereof
CN103212672B (en) Method for casting low speed diesel engine cylinder cap for large cylinder diameter boat
CN103418750A (en) Spherical valve main body casting technology
CN105215271B (en) The cored-up mould sand mould structure and cored-up mould method of a kind of gear box casing casting
CN101462160B (en) Full-mold casting technique of resin-bonded sand
CN102717030B (en) Precision casting method for thick-wall base aluminium alloy casting
CN103920852B (en) A kind of precision casting process of large foundry goods
CN102259167B (en) Method for casting turbocharger encloser casting
CN103464680A (en) Sand mold structure for integrally molded screw compressor case and manufacture and use method of sand mold structure
CN101628319B (en) Production method of double-sand mold of resin sand
CN105364002B (en) A kind of full form casting process for accelerating casting solidification to cool down
CN101823121B (en) Method for casting glass mold by resin sand single box in manner of feederless production
CN102896280B (en) Casting method of automobile axle housing
CN103667876B (en) A kind of many metal composite wear-resistant bend pipe and preparation method thereof
CN102380586A (en) Device and production method for manufacturing automobile rear axle cast through metal mold with sand lining
CN104985127A (en) Efficient multipart multilayer stacked pouring system and technology
CN102179479B (en) Groove casting technique for large belt pulley
CN102228956B (en) Precision fire mould casting process of series sliding bed bedplates for turnouts of high-speed railway lines for passenger transport and special die
CN101569921A (en) Casting technique for manufacturing mold core by using resin sand
CN101927318A (en) High strength precoated sand
CN104999051A (en) Low-pressure casting method for automobile motor casing and motor casing structure

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120425

C02 Deemed withdrawal of patent application after publication (patent law 2001)