CN103100669A - Valve body combined casting process for sluice valve with flange casting bolt hole - Google Patents

Valve body combined casting process for sluice valve with flange casting bolt hole Download PDF

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Publication number
CN103100669A
CN103100669A CN2013100584639A CN201310058463A CN103100669A CN 103100669 A CN103100669 A CN 103100669A CN 2013100584639 A CN2013100584639 A CN 2013100584639A CN 201310058463 A CN201310058463 A CN 201310058463A CN 103100669 A CN103100669 A CN 103100669A
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Prior art keywords
core
valve
casing
flange
mold
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CN2013100584639A
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CN103100669B (en
Inventor
孙述全
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Wuhu Jinmao Liquid Science and Technolgoy Co Ltd
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Wuhu Jinmao Liquid Science and Technolgoy Co Ltd
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Priority to CN201310058463.9A priority Critical patent/CN103100669B/en
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Abstract

The invention discloses a valve body combined casting process for a sluice valve with flange casting with bolt hole. The process comprises steps of: first preparing a mold of an upper shell core outside the valve body, a mold of a lower shell outside the valve body, a flange core mold, an inner shell core mold, a casting cylinder mold and a mold of an upper core mould outside the valve body; respectively arranging the above molds on a hot box core shooter, injecting precoated sand and insulating the molds at 190-230 DEG C for 60-120 s, curing the casting sand, taking out, and respectively preparing into an upper shell core outside the valve body, a lower shell core outside the valve body, a flange core, an inner shell core and a casting cylinder; and finally conducting corresponding combination, casting and post treatment on the above cores to form a valve body product. The valve body produced by the above process has advantages of tightly matched and fixed components, good surface smoothness, high shape size precision, and no back-end production processing procedure; meanwhile, in the production process, procedure preparation is conducted by using cores of different shapes, so as to facilitate collaboration production by many people, improve production efficiency and save production cost. Therefore, the invention creates a novel pattern for casting process.

Description

A kind of with flange casting bolt hole gate valve body composite pouring technique
Technical field
What the present invention relates to is the valve body casting craft, and what be specifically related to is a kind of directly with flange casting bolt hole gate valve body composite pouring technique.
Background technology
the present general pouring technology of gate valve body, at least have secondary structure mold, a secondary core mould that forms body cavity that forms the valve body external form, valve body profile mould forms the exterior contour of valve body, the valve body core box forms the inner chamber of valve body, there is no bolt hole on the valve body moulding finished product flange of making like this, these bolts hole need to be got out, not only affect production capacity, the precision of bolt hole can't guarantee simultaneously, or the structure mold with a secondary formation valve body external form, the one secondary core mould that forms body cavity, the one secondary flange bolt hole convex cylinder core mold that forms, the profile mould forms the exterior contour of valve body, core box forms the endoporus of valve body, flange convex cylinder core is enclosed within on the valve body core, the exterior contour of itself and valve body makes up mutually, form the valve body structure die cavity, valve body moulding with this explained hereafter, although flange bolt hole once-forming, reduced postorder machining, improved the bolt hole accuracy of manufacture, but because of valve body structure sand mold stamp very easily under the effect of molten iron, be enclosed within on the valve body core because of flange convex cylinder core simultaneously, therefore be difficult to accurate location during mould assembling, therefore be difficult to form the batch production benefit.
Summary of the invention
For solving the deficiency on prior art, the purpose of this invention is to provide a kind ofly with flange casting bolt hole gate valve body composite pouring technique, the core combination by different structure has improved product quality and production efficiency, save production cost, simplified the manufacturing technology requirement to product.
For achieving the above object, technical scheme of the present invention is as follows:
A kind ofly it is characterized in that with flange casting bolt hole gate valve body composite pouring technique, its method step is as follows:
(1) at first produce the outer upper casing core mold of valve body, valve body outer lower casing core mold, flange core mold, inner casing core mold and water a mould;
(2) with the outer upper casing core mold of the above-mentioned valve body of making, valve body outer lower casing core mold, flange core, inner casing core mold, water a mould and be contained in respectively on hot box shoot core machine, inject precoated sand and mould in 190~230 ℃, be incubated 60~120 seconds, take out after solidifying molding sand, make respectively the outer upper casing core of relative valve body, valve body outer lower casing core, flange core, inner casing core and water cylinder;
(3) above-mentioned flange core, flange projection core, flange core endoporus, flange projection core is configured for forming valve body finished product flange bolt hole;
Described inner casing core is provided with the inner casing sand core head; Be provided with the outer upper casing core die cavity of valve body and flange core die cavity and the outer upper casing core die cavity of valve body in the outer upper casing core of described valve body;
Be provided with the outer lower casing core die cavity of valve body and flange core die cavity in the outer lower casing core of described valve body;
(4) get inner casing core and two flange cores, two flange cores are divided from inner casing core two ends be enclosed within on the inner casing sand core head, wherein flange projection core is inboard in respectively, consists of inner casing core and flange core combining structure;
Inner casing core and the flange core combining structure of (5) getting in above-mentioned steps (4) are put into the outer lower casing core of valve body; Wherein, described inner casing core is put into the outer lower casing core die cavity of valve body, and two flange cores are put into flange core die cavity and consisted of core combining structure under inner casing core and shell;
(6) with the outer upper casing core stack of core combining structure and upper cover upper valve body under the inner casing core in above-mentioned steps (5) and shell, core combining structure on core combining structure and shell under formation inner casing core and shell, be valve body composite pouring structure, described valve body composite pouring structure is provided with valve body cast die cavity;
(7) install on the core combining structure under the inner casing core in described step (5) and shell and water cylinder, fastening with iron wire by described valve body composite pouring structure external form, directly cast, post processing forms the finished product structure valve body that need not following process.
The present invention is by the valve body of above-mentioned explained hereafter, each inter-module closely cooperate and locate fixing, the product of production, surface smoothness is good, the morpheme dimensional accuracy is high, therefore need not the continuous processing of later process, in manufacturing, utilize the outer core combination of type to carry out operation and prepare simultaneously, be conducive to multiple person cooperational production, improve production efficiency, saved production cost, started a kind of casting technique new model; And make up by the core of different structure, improved product quality and production efficiency, saved production cost, simplified the manufacturing technology requirement to product.
Description of drawings
Fig. 1 is valve body casting forming process flow chart of the present invention;
Fig. 2 is valve body finished product structure schematic diagram of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is valve body composite pouring structural representation of the present invention;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the left view of Fig. 4;
Fig. 7 is valve body composite pouring flange sand core structure schematic diagram of the present invention;
Fig. 8 is the cutaway view of Fig. 7;
Fig. 9 is valve body composite pouring inner casing sand core structure schematic diagram;
Figure 10 is the outer upper casing sand core structure schematic diagram of valve body composite pouring;
Figure 11 is the outer lower casing sand core structure schematic diagram of valve body composite pouring;
Figure 12 is inner casing core and flange core combination assumption diagram;
Figure 13 is core combination assumption diagram under inner casing core and shell;
Figure 14 is core combination assumption diagram on core combining structure and shell under inner casing core and shell;
In figure: 1-contains the valve flange bolt hole, and the outer upper casing core of 2-valve body, the outer lower casing core of 3-valve body, 4-flange core, 5-inner casing core, 6-valve body cast die cavity, 7-water cylinder.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
Referring to Fig. 1, the present invention casts bolt hole gate valve body composite pouring technique and provide a kind of with flange by the core combination of different structure, has improved product quality and production efficiency, has saved production cost, has simplified the manufacturing technology requirement to product; Its concrete technology is as follows:
(1) make the outer upper casing core of valve body, valve body outer lower casing core, flange core, inner casing core, water a mould, the outer upper casing core mold of valve body is used to form the outer upper casing core 2 of valve body, the outer lower casing core mold of valve body is used to form the outer lower casing core 3 of valve body, the flange core mold is used to form flange core 4, the inner casing core mold is used to form inner casing core 5, water a mould be used to form water the cylinder 7.
(2) with the outer upper casing core of the above-mentioned valve body of making, valve body outer lower casing core, flange core, inner casing core, water a mould and be contained in respectively on hot box shoot core machine, inject precoated sand and mould in 190~230 ℃, be incubated 60~120 seconds, take out after solidifying molding sand, make respectively the outer upper casing core 2 of relative valve body, valve body outer lower casing core 3, flange core 4, inner casing core 5, water cylinder 7.
3) above-mentioned flange core such as Fig. 4 contain flange projection core 4-1, flange core endoporus 4-2, and flange projection core 4-1 is used to form valve body finished product flange bolt hole.
Above-mentioned inner casing core 5 contains inner casing sand core head 5-1.
The outer upper casing core 2 of above-mentioned valve body contains the outer upper casing core die cavity of 2-1 valve body, 2-2 flange core die cavity; The outer upper casing core die cavity of valve body.
The outer lower casing core 3 of above-mentioned valve body contains the outer lower casing core die cavity of 3-1 valve body, 3-2 flange core die cavity.
(4) get inner casing core 5 and two flange cores 4, two flange cores 4 minutes be enclosed within on inner casing sand core head 5-1 from inner casing core 5 two ends, wherein contain flange projection core respectively in inboard 4-1.As Fig. 8 inner casing core and flange core combination assumption diagram.
5) get above-mentionedly as Fig. 8 inner casing core and flange core combining structure and the outer lower casing core 3 of valve body, will put into valve body lower casing core 3 outward as Fig. 8 inner casing core and flange core combination assumption diagram.Wherein inner casing core (5) is put into the outer lower casing core die cavity of 3-1 valve body, and two flange cores 4 are put into flange core die cavity 3-2.Fig. 9 is core combination assumption diagram under inner casing core and shell.
(6) as Fig. 9, get core combining structure and the outer upper casing core 2 of valve body under above-mentioned shell core and shell, upper casing core 2 outside core combining structure upper cover upper valve body under will be as Fig. 9 inner casing core and shell, core combining structure (as Figure 10) on core combining structure and shell under formation inner casing core and shell, it forms structure such as Fig. 3 is valve body composite pouring structural representation, includes valve body cast die cavity 6.
(7) Figure 10 installs on the core combining structure under inner casing core and shell to water cylinder 7, by valve body composite pouring structure (as Fig. 3) external form with iron wire etc. fastening (prevent high temperature liquid iron cast then rise type), directly cast, post processing forms the finished product structure valve body that need not following process.
Wherein: described core material is by hot box shoot core machine injects precoated sand, and mould is incubated 60~120 seconds in 190~230 ℃, completes after the curing molding sand; Described core mold is the wear-resistant aluminum alloy material.
By above-described embodiment, integrated artistic step of the present invention is: at first make the outer upper casing core of valve body, valve body outer lower casing core, flange core, inner casing core, water a mould, the outer upper casing core mold of valve body; Then, above-mentioned mould is contained in respectively on hot box shoot core machine, injects precoated sand and mould in 190~230 ℃, be incubated 60~120 seconds, take out after solidifying molding sand, make respectively the outer upper casing core of relative valve body, valve body outer lower casing core, flange core, inner casing core, water cylinder; Get at last above-mentioned core, form the valve body finished product through respective combination, cast, post processing.
The present invention is by the valve body of above-mentioned explained hereafter, each inter-module closely cooperate and locate fixing, the product of production, surface smoothness is good, the morpheme dimensional accuracy is high, therefore need not the continuous processing of later process, in manufacturing, utilize the outer core combination of type to carry out operation and prepare simultaneously, be conducive to multiple person cooperational production, improve production efficiency, saved production cost, started a kind of casting technique new model; And make up by the core of different structure, improved product quality and production efficiency, saved production cost, simplified the manufacturing technology requirement to product.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
  

Claims (1)

1. cast bolt hole gate valve body composite pouring technique with flange for one kind, it is characterized in that, its processing step is as follows:
(1) at first produce the outer upper casing core mold of valve body, valve body outer lower casing core mold, flange core mold, inner casing core mold and water a mould;
(2) with the outer upper casing core mold of the above-mentioned valve body of making, valve body outer lower casing core mold, flange core, inner casing core mold, water a mould and be contained in respectively on hot box shoot core machine, inject precoated sand and mould in 190~230 ℃, be incubated 60~120 seconds, take out after solidifying molding sand, make respectively the outer upper casing core of relative valve body, valve body outer lower casing core, flange core, inner casing core and water cylinder;
(3) above-mentioned flange core, flange projection core, flange core endoporus, flange projection core is configured for forming valve body finished product flange bolt hole;
Described inner casing core is provided with the inner casing sand core head; Be provided with the outer upper casing core die cavity of valve body and flange core die cavity and the outer upper casing core die cavity of valve body in the outer upper casing core of described valve body;
Be provided with the outer lower casing core die cavity of valve body and flange core die cavity in the outer lower casing core of described valve body;
(4) get inner casing core and two flange cores, two flange cores are divided from inner casing core two ends be enclosed within on the inner casing sand core head, wherein flange projection core is inboard in respectively, consists of inner casing core and flange core combining structure;
Inner casing core and the flange core combining structure of (5) getting in above-mentioned steps (4) are put into the outer lower casing core of valve body; Wherein, described inner casing core is put into the outer lower casing core die cavity of valve body, and two flange cores are put into flange core die cavity and consisted of core combining structure under inner casing core and shell;
(6) with the outer upper casing core stack of core combining structure and upper cover upper valve body under the inner casing core in above-mentioned steps (5) and shell, core combining structure on core combining structure and shell under formation inner casing core and shell, be valve body composite pouring structure, described valve body composite pouring structure is provided with valve body cast die cavity;
(7) install on the core combining structure under the inner casing core in described step (5) and shell and water cylinder, fastening with iron wire by described valve body composite pouring structure external form, directly cast, post processing forms the finished product structure valve body that need not following process.
CN201310058463.9A 2013-02-25 2013-02-25 A kind of with flange casting bolt hole gate valve body composite pouring technique Active CN103100669B (en)

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CN201310058463.9A CN103100669B (en) 2013-02-25 2013-02-25 A kind of with flange casting bolt hole gate valve body composite pouring technique

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Application Number Priority Date Filing Date Title
CN201310058463.9A CN103100669B (en) 2013-02-25 2013-02-25 A kind of with flange casting bolt hole gate valve body composite pouring technique

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CN103100669B CN103100669B (en) 2016-04-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286276A (en) * 2013-05-21 2013-09-11 佛山市南海区巨子电机配件有限公司 Technology for casting motor shell
CN103322294A (en) * 2013-07-09 2013-09-25 芜湖市金贸流体科技股份有限公司 Inlaid valve element and manufacturing process thereof
CN103706764A (en) * 2013-12-17 2014-04-09 四川制动科技股份有限公司 Inner cavity sand core structure of brake valve of railway vehicle
CN104338899A (en) * 2014-10-21 2015-02-11 黄旭伟 Stainless steel sand mold casting process
CN106853511A (en) * 2017-01-06 2017-06-16 芜湖市金贸流体科技股份有限公司 The mode of production of high-accuracy gate valve plate sealing surface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201008940Y (en) * 2007-03-15 2008-01-23 繁昌县金贸铸造有限责任公司 Cast forming mould of flange casting elements
CN101259520A (en) * 2007-12-22 2008-09-10 繁昌县金贸铸造有限责任公司 Cast form technique for pipe casting without swaging die and core box
CN101920315A (en) * 2010-09-07 2010-12-22 江苏金石铸锻有限公司 Casting method of ZG1Cr13 of PFFAP35/52 valve body
EP2447088B1 (en) * 2010-11-01 2012-12-26 Honda Motor Co., Ltd. Hub manufacturing method and wheel provided with the hub

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201008940Y (en) * 2007-03-15 2008-01-23 繁昌县金贸铸造有限责任公司 Cast forming mould of flange casting elements
CN101259520A (en) * 2007-12-22 2008-09-10 繁昌县金贸铸造有限责任公司 Cast form technique for pipe casting without swaging die and core box
CN101920315A (en) * 2010-09-07 2010-12-22 江苏金石铸锻有限公司 Casting method of ZG1Cr13 of PFFAP35/52 valve body
EP2447088B1 (en) * 2010-11-01 2012-12-26 Honda Motor Co., Ltd. Hub manufacturing method and wheel provided with the hub

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286276A (en) * 2013-05-21 2013-09-11 佛山市南海区巨子电机配件有限公司 Technology for casting motor shell
CN103286276B (en) * 2013-05-21 2015-01-21 佛山市南海区巨子电机配件有限公司 Technology for casting motor shell
CN103322294A (en) * 2013-07-09 2013-09-25 芜湖市金贸流体科技股份有限公司 Inlaid valve element and manufacturing process thereof
CN103322294B (en) * 2013-07-09 2015-10-28 芜湖市金贸流体科技股份有限公司 A kind of inserted spool and manufacturing process thereof
CN103706764A (en) * 2013-12-17 2014-04-09 四川制动科技股份有限公司 Inner cavity sand core structure of brake valve of railway vehicle
CN103706764B (en) * 2013-12-17 2015-06-17 四川制动科技股份有限公司 Inner cavity sand core structure of brake valve of railway vehicle
CN104338899A (en) * 2014-10-21 2015-02-11 黄旭伟 Stainless steel sand mold casting process
CN106853511A (en) * 2017-01-06 2017-06-16 芜湖市金贸流体科技股份有限公司 The mode of production of high-accuracy gate valve plate sealing surface

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