CN103862000B - A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique - Google Patents

A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique Download PDF

Info

Publication number
CN103862000B
CN103862000B CN201410134213.3A CN201410134213A CN103862000B CN 103862000 B CN103862000 B CN 103862000B CN 201410134213 A CN201410134213 A CN 201410134213A CN 103862000 B CN103862000 B CN 103862000B
Authority
CN
China
Prior art keywords
mould
foundry goods
casting
medium
frequency induction
Prior art date
Application number
CN201410134213.3A
Other languages
Chinese (zh)
Other versions
CN103862000A (en
Inventor
毛进学
王娟
Original Assignee
江苏力源金河铸造有限公司
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 江苏力源金河铸造有限公司 filed Critical 江苏力源金河铸造有限公司
Priority to CN201410134213.3A priority Critical patent/CN103862000B/en
Publication of CN103862000A publication Critical patent/CN103862000A/en
Application granted granted Critical
Publication of CN103862000B publication Critical patent/CN103862000B/en

Links

Abstract

The present invention relates to a kind of end cap foundry goods core shell vertical-parting casting on flat casting technique, step is melting: metal alloy melts in medium-frequency induction furnace, and smelting temperature controls at 1490 ~ 1520 DEG C; Make mould: when designing mould, carry out according to the technique of casting on flat, about two groups of dead heads divide and are located at template, intersection arranges ceramic foam filter net, the thick major part of foundry goods will be placed in the left and right of the horizontal direction of casting mold, is provided with ingate at the topmost of foundry goods; Adopt coated sand shell mould, core processed; Cast: by shell mould and inner chamber assembly of sand core good after, enter mould assembling and closing vertically and pour into a mould, first case pouring temperature controls at 1390 DEG C ~ 1400 DEG C; After cast, unpack after foundry goods naturally cools 2.5 hours in sand mold; Unpack, clear up, check, put in storage.The invention has the advantages that: cancel Split vertical parting technique, take vertical-parting casting on flat casting technique, foundry goods will avoid internal porosity, shrinkage cavity defect to produce.

Description

A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique
Technical field
The present invention relates to a kind of casting technique, particularly a kind of end cap foundry goods core shell vertical-parting casting on flat casting technique.
Background technology
Casting is poured in casting mold by the metal liquid by melting, obtains the manufacturing process of the part of required form and performance through cooled and solidified.Casting is conventional manufacture method, and advantage is: low cost of manufacture, and technological flexibility is large, and can obtain complicated shape and large-scale foundry goods, occupy very large proportion in machine-building, as lathe accounts for 60 ~ 80%, automobile accounts for 25%, and tractor accounts for 50 ~ 60%.Casting is a kind of ancient manufacture method, before China can trace back to 6000.Along with the development of industrial technology, the quality of casting heavy castings directly affects the quality of product, therefore, is cast in machinery manufacturing industry and occupies an important position.Due to now to the raising that castability, casting accuracy, casting cost and casting automation etc. require, foundry engieering is towards precise treatment and high-quality future development.
Conventional end cap cast casting technique, take Split vertical parting technique, if position is directly poured into a mould like this, the thick major part of foundry goods will be placed in the top and the bottom of casting mold respectively, be unfavorable for the internal quality of casting, special foundry goods top will produce internal porosity, shrinkage cavity defect, is badly in need of new production technology and is improved it.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly produces practical, that presentation quality good, size is precisely high end cap foundry goods core shell vertical-parting casting on flat casting technique.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of end cap foundry goods core shell vertical-parting casting on flat casting technique, and its innovative point is: described step is:
A) melting: will the pig iron in trolley be added by charger, steel scrap, foundry returns drops in medium-frequency induction furnace and carries out heat fused, the waste gas produced in medium-frequency induction furnace fusion process, flue dust is discharged by dust arrester, the fusing of medium-frequency induction furnace iron liquid is from low temperature, temperature rises gradually, final smelting temperature controls at 1490 ~ 1520 DEG C, iron liquid risen to the leaving water temperature of regulation in heat preservation zone and be incubated standing 15 minutes, then, opening operation bell, refining is carried out to iron liquid, degasification, except Slag treatment, molten metal is purified, and keep bonded hard ferrite magnet in the outlet water temperature range of setting, qualified iron liquid can be released by forehearth outlet,
B) mould is made: when designing mould, end cap foundry goods core shell vertical-parting, the running gate system of mould is pressed horizontal pouring process and is arranged, the matching used template of foundry goods makes corresponding dead head position according to the running gate system of mould, about two groups of dead heads divide and are located at template, intersection arranges ceramic foam filter net, and the thick major part of foundry goods will be placed in the left and right of the horizontal direction of casting mold, be provided with ingate at the topmost of foundry goods, adopt coated sand shell mould, core processed;
C) pour into a mould: by shell mould and inner chamber assembly of sand core good after, enter mould assembling and closing vertically and pour into a mould, first case pouring temperature controls at 1390 DEG C ~ 1400 DEG C; After cast, unpack after foundry goods naturally cools 2.5 hours in sand mold;
D) open pouring box, take out cast, after the core on cast surface is cleared up, foundry goods is tested, puts in storage.
The invention has the advantages that: cancel Split vertical parting technique, take vertical-parting casting on flat casting technique, consciously thick for foundry goods major part will be placed in the left and right of the horizontal direction of casting mold, the thick major part of foundry goods is placed in casting mold bottom, be conducive to promoting the internal quality of casting, foundry goods will avoid internal porosity, shrinkage cavity defect to produce; Shell mould is taked to be conducive to improving the visual quality of casting and dimensional accuracy; Eliminate conventional reserved shell mould and core gap approaches under green-sand die cavity during design, be so more conducive to raising shell mould rigidity, be more conducive to feeding a casting.
Accompanying drawing explanation
Fig. 1 is the mould schematic diagram of end cap foundry goods core shell vertical-parting casting on flat casting technique of the present invention.
Fig. 2 is the process chart of end cap foundry goods core shell vertical-parting casting on flat casting technique of the present invention.
Fig. 3 is medium-frequency induction furnace structural representation of the present invention.
Detailed description of the invention
Schematic diagram is as shown in Figures 1 and 2 known, and end cap foundry goods core shell vertical-parting casting on flat casting technique of the present invention comprises the following steps:
The first step, melting: will the pig iron in trolley be added by charger, steel scrap, foundry returns drops in medium-frequency induction furnace and carries out heat fused, the waste gas produced in medium-frequency induction furnace fusion process, flue dust is discharged by dust arrester, the fusing of medium-frequency induction furnace iron liquid is from low temperature, temperature rises gradually, final smelting temperature controls at 1490 ~ 1520 DEG C, iron liquid risen to the leaving water temperature of regulation in heat preservation zone and be incubated standing 15 minutes, then, opening operation bell, refining is carried out to iron liquid, degasification, except Slag treatment, molten metal is purified, and keep bonded hard ferrite magnet in the outlet water temperature range of setting, qualified iron liquid can be released by forehearth outlet.
Second step, make mould: when designing mould, end cap foundry goods core shell vertical-parting, the running gate system of mould is pressed horizontal pouring process and is arranged, the matching used template of foundry goods makes corresponding dead head position according to the running gate system of mould, about two groups of dead heads divide and are located at template, intersection arranges ceramic foam filter net, the thick major part of foundry goods will be placed in the left and right of the horizontal direction of casting mold, is provided with ingate at the topmost of foundry goods, adopts coated sand shell mould, core processed.During design core shell Split vertical parting technique, consciously thick for foundry goods major part is placed in casting mold bottom, is so more conducive to improving the internal quality of casting.Shell mould is taked to be conducive to improving the visual quality of casting and dimensional accuracy.Eliminate conventional reserved shell mould and core gap approaches under green-sand die cavity during design, be so more conducive to raising shell mould rigidity, be more conducive to feeding a casting.
3rd step, cast: by shell mould and inner chamber assembly of sand core good after, enter mould assembling and closing vertically and pour into a mould, first case pouring temperature controls at 1390 DEG C ~ 1400 DEG C; After cast, unpack after foundry goods naturally cools 2.5 hours in sand mold.
4th step, opens pouring box, takes out cast, after being cleared up by the core on cast surface, tests, puts in storage foundry goods.
Schematic diagram is as shown in Figure 3 known, the medium-frequency induction furnace used in the present invention is by medium-frequency induction furnace district 2, heat preservation zone 3, forehearth 4, charger 5, chimney 6 is formed, by charger 5, the metal alloy ingot added in trolley or foundry returns are dropped in combustion chamber, medium-frequency induction furnace district 27, heating medium-frequency induction furnace, the waste gas produced in medium-frequency induction furnace heating process, flue dust is discharged by chimney 6, low-temperature metal liquid after medium-frequency induction furnace heating flows in lower heat preservation zone, position 3 from the medium-frequency induction furnace district 2 that position is higher, in heat preservation zone 3, molten metal is risen to the temperature of regulation and be incubated.Open heat preservation zone 3 and operate fire door 8, molten metal is carried out refining, degasification, except Slag treatment, purified by molten metal, and keeps temperature of aluminum liquid to go out metal temperature scope what set, the overfall dam 9 of molten metal bottom heat preservation zone 3 enters forehearth 4, can release molten metal by forehearth 4 outlet.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (1)

1. an end cap foundry goods core shell vertical-parting casting on flat casting technique, is characterized in that: described technique is:
A) melting: will the pig iron in trolley be added by charger, steel scrap, foundry returns drops in medium-frequency induction furnace and carries out heat fused, the waste gas produced in medium-frequency induction furnace fusion process, flue dust is discharged by dust arrester, the fusing of medium-frequency induction furnace iron liquid is from low temperature, temperature rises gradually, final smelting temperature controls at 1490 ~ 1520 DEG C, iron liquid risen to the leaving water temperature of regulation in heat preservation zone and be incubated standing 15 minutes, then, opening operation bell, refining is carried out to iron liquid, degasification, except Slag treatment, molten metal is purified, and keep bonded hard ferrite magnet in the outlet water temperature range of setting, qualified iron liquid can be released by forehearth outlet,
B) mould is made: when designing mould, end cap foundry goods core shell vertical-parting, the running gate system of mould is pressed horizontal pouring process and is arranged, the matching used template of foundry goods makes corresponding dead head position according to the running gate system of mould, about two groups of dead heads divide and are located at template, intersection arranges ceramic foam filter net, and the thick major part of foundry goods will be placed in the left and right of the horizontal direction of casting mold, be provided with ingate at the topmost of foundry goods, adopt coated sand shell mould, core processed;
C) pour into a mould: by shell mould and inner chamber assembly of sand core good after, enter mould assembling and closing vertically and pour into a mould, first case pouring temperature controls at 1390 DEG C ~ 1400 DEG C; After cast, unpack after foundry goods naturally cools 2.5 hours in sand mold;
D) open pouring box, take out cast, after the core on cast surface is cleared up, foundry goods is tested, puts in storage;
Described medium-frequency induction furnace is made up of medium-frequency induction furnace district, heat preservation zone, forehearth, charger, chimney, by charger, the metal alloy ingot added in trolley or foundry returns are dropped in medium-frequency induction furnace area combustion, heating medium-frequency induction furnace, the waste gas produced in medium-frequency induction furnace heating process, flue dust are discharged by chimney, molten metal, from lower heat preservation zone, the inflow position, medium-frequency induction furnace district that position is higher, is risen to the temperature of regulation and is incubated by the low-temperature metal liquid after medium-frequency induction furnace heating in heat preservation zone;
Open heat preservation zone operation fire door, molten metal is carried out refining, degasification, except Slag treatment, purified by molten metal, and keeps temperature of aluminum liquid to go out metal temperature scope what set, the overfall dam of molten metal bottom heat preservation zone enters forehearth, can release molten metal by forehearth outlet.
CN201410134213.3A 2014-04-04 2014-04-04 A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique CN103862000B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410134213.3A CN103862000B (en) 2014-04-04 2014-04-04 A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410134213.3A CN103862000B (en) 2014-04-04 2014-04-04 A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique

Publications (2)

Publication Number Publication Date
CN103862000A CN103862000A (en) 2014-06-18
CN103862000B true CN103862000B (en) 2016-04-27

Family

ID=50901352

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410134213.3A CN103862000B (en) 2014-04-04 2014-04-04 A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique

Country Status (1)

Country Link
CN (1) CN103862000B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289672A (en) * 2014-10-24 2015-01-21 芜湖市和蓄机械股份有限公司 Sand mold with single-side pouring cup and manufacturing method of sand mold
CN106077502A (en) * 2016-06-01 2016-11-09 安徽振海重工机械有限公司 One is applied to new-energy automobile and drives motor rotor rack casting technique
CN106270455A (en) * 2016-08-30 2017-01-04 北京航星机器制造有限公司 A kind of preparation method of large-scale vertical-parting self-curing mo(u)ld
CN108202131A (en) * 2016-12-16 2018-06-26 江苏泽茗精密机械制造股份有限公司 The casting technique of turbocharger housing
CN106623806B (en) * 2017-01-19 2018-05-22 溧阳市万盛铸造有限公司 A kind of cast casting technique
WO2019061239A1 (en) * 2017-09-29 2019-04-04 吴江市液铸液压件铸造有限公司 Process for fabricating spherical end cap casting
CN109014059B (en) * 2018-09-17 2020-07-21 重庆新炬鑫机械有限公司 Vertical casting process for vertical parting of flywheel

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000773A (en) * 1976-02-09 1977-01-04 Gus Sevastakis Die assembly for continuous vertical casting of tubular metallic products
CN101444830A (en) * 2007-11-28 2009-06-03 上海华新合金有限公司 Method for casting elevator gray cast-iron scored pulley
CN101905307A (en) * 2010-07-16 2010-12-08 吴江市液铸液压件铸造有限公司 Production process for valve body end cap
CN101905312A (en) * 2009-06-08 2010-12-08 江苏新康华机械有限公司 Process for casting U-shaped frame of wind power generation equipment
CN102125991A (en) * 2011-04-01 2011-07-20 天津市立鑫晟精细铸造有限公司 Moulding process for horizontal moulding and vertical casting of plate castings
CN102773403A (en) * 2012-07-07 2012-11-14 山西宇清环保有限公司 Method for producing overturning plate valve cover by resin sand
CN102836966A (en) * 2012-10-10 2012-12-26 四川省祥业机械铸造有限公司 Casting cooling process for shell of central refrigeration compressor
CN103084546A (en) * 2013-02-06 2013-05-08 芜湖市金贸流体科技股份有限公司 Casting method of valve cover casting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238055B2 (en) * 1986-03-10 1990-08-28 Nabeya Iron & Tool Works SUICHOKUIKOMIHOHO

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000773A (en) * 1976-02-09 1977-01-04 Gus Sevastakis Die assembly for continuous vertical casting of tubular metallic products
CN101444830A (en) * 2007-11-28 2009-06-03 上海华新合金有限公司 Method for casting elevator gray cast-iron scored pulley
CN101905312A (en) * 2009-06-08 2010-12-08 江苏新康华机械有限公司 Process for casting U-shaped frame of wind power generation equipment
CN101905307A (en) * 2010-07-16 2010-12-08 吴江市液铸液压件铸造有限公司 Production process for valve body end cap
CN102125991A (en) * 2011-04-01 2011-07-20 天津市立鑫晟精细铸造有限公司 Moulding process for horizontal moulding and vertical casting of plate castings
CN102773403A (en) * 2012-07-07 2012-11-14 山西宇清环保有限公司 Method for producing overturning plate valve cover by resin sand
CN102836966A (en) * 2012-10-10 2012-12-26 四川省祥业机械铸造有限公司 Casting cooling process for shell of central refrigeration compressor
CN103084546A (en) * 2013-02-06 2013-05-08 芜湖市金贸流体科技股份有限公司 Casting method of valve cover casting

Also Published As

Publication number Publication date
CN103862000A (en) 2014-06-18

Similar Documents

Publication Publication Date Title
CN102626769B (en) Manufacturing process of pump body casting of super duplex stainless steel centrifugal pump
CN1298466C (en) Visible casting method
CN104128564B (en) A kind of casting technique of Sand-Faced Metal Mould Casting spheroidal graphite cast-iron hinge ear
CN100364693C (en) Casting method for exhaust branch pipe of thin-wall ball iron triplet
CN101767193B (en) Process method for eliminating loose of thick and large casting of high-temperature alloy
CN101829774B (en) Casting method of aluminum alloy wheel rim
CN102717030B (en) Precision casting method for thick-wall base aluminium alloy casting
CN102873279B (en) Method for producing heat-resistant steel automobile exhaust pipes by iron mold sand lining process
CN103736928B (en) A kind of evaporative pattern running gate system of gear box
CN108531803B (en) A kind of casting method of spheroidal graphite cast-iron valve body
CN104128567B (en) The casting method and device of brake disc disk body and thus obtained brake disc disk body
CN103742536B (en) The casting method of high-lead bronze copper sheathing
CN102430714A (en) Process for casting thick and large nodular cast iron valve plate
CN104439074A (en) Fusible mold precision casting method
CN103302242A (en) Precise casing method of tiles of floating wall of combustion chamber of aeroengine
CN104190875B (en) A kind of composite mould manufacturing process of Complex Thin Shell
CN201768879U (en) Vertical casting mould for nodular cast iron
CN103084542B (en) A kind of by lost foam casting heat resisting steel or wear-resisting alloy steel technique
CN103639366A (en) Preparation method for U-shaped hole in casting
CN104493095B (en) The running gate system and its pouring procedure of thin-section casting
CN204209071U (en) A kind of brake disc disk body and casting device thereof
CN203817298U (en) Sand mold device of nodular cast iron hub
CN104164574B (en) A kind of electroslag remelting prepares the method for high-rating generator retaining ring hollow steel ingot
CN102921890A (en) Investment casting method of heat-resistant steel exhaust manifold for automobile
CN102310187B (en) Elevator traction sheave casting method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant