CN206550292U - Locomotive engine water cooling cylinder negative-pressure los mould casting structure - Google Patents
Locomotive engine water cooling cylinder negative-pressure los mould casting structure Download PDFInfo
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- CN206550292U CN206550292U CN201720248311.9U CN201720248311U CN206550292U CN 206550292 U CN206550292 U CN 206550292U CN 201720248311 U CN201720248311 U CN 201720248311U CN 206550292 U CN206550292 U CN 206550292U
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Abstract
A kind of locomotive engine water cooling cylinder negative-pressure los mould casting structure, it is characterised in that the white module of cylinder body and running gate system including shaping, the white module of cylinder body is bonded with running gate system；The white module of cylinder body is bonded and constituted successively by four sections of white moulds：According to the planform of locomotive engine water cooling cylinder, by cylinder body according to internal die cavity distribution characteristics be divided into first paragraph, second segment, the 3rd section and the 4th section, every section of each self-forming of white mould, the 4 Φ 8mm apertures connected with internal die cavity are opened up at the top of wherein the 4th section white mould in shaping, the entrance of molding sand and supplement when aforementioned four aperture is used to be coated with coating, hydrops outflow and moulding with first paragraph, the aperture of the 3rd section of white mould side.The utility model casting accuracy height, flexible design, there is machine-finish allowance small, manufacturing cost is low, the advantage of grade simple to operate.
Description
Technical field
This belongs to negative-pressure los mould casting technical field with utility model, and in particular to a kind of locomotive engine water cooling cylinder
Negative-pressure los mould casting structure.
Background technology
Locomotive engine water cooling cylinder, due to the particularity of part, unselected clay sand mold or resin sand casting manufacture this zero
Part, is required for that core is fabricated separately, because core only has 8 holes of Φ 19 as support, it is difficult to undertake the weight of core, concrete-cored bone
After bring the drawbacks of cleaning is difficult takes out, furthermore two chambers pass through 19 independent 0.9cm above and below part2Different in nature hole connection, type
Core is cleared up very difficult because of the small easy fracture of area.
And negative-pressure los mould casting is the emerging casting technique of casting industry, it is will be similar to casting dimension shape
Foamed plastic model bond and be combined into model cluster, after brushing refractory coating and drying, be embedded in vibration molding in drystone sand,
Liquid metals is poured into a mould under negative pressure, model is gasified and occupies modal position, the novel casting of casting needed for being formed after solidification cooling
Method.The technical process of lost foam casting is simply more than traditional sand casting process, and its technological advantage has：Casting accuracy
Height, flexible design, without the core in conventional cast and the coremaking Ministry of worker, be not in because of core size, clear in traditional sand casting
Clean production and the weight for mitigating spray, the advantages of machine-finish allowance is small, therefore it is excellent with negative-pressure los mould casting this part
Gesture is obvious.
The content of the invention
The utility model is to be directed to above-mentioned present situation, and a kind of novel locomotive engine water cooling cylinder negative pressure provided disappears
Die cast structure.
Main technical schemes of the present utility model：Locomotive engine water cooling cylinder negative-pressure los mould casting structure：Its feature
It is the white module of cylinder body and running gate system for including shaping, the white module of cylinder body is bonded with running gate system；The white module of cylinder body by
Four sections of white moulds are bonded composition successively：According to the planform of locomotive engine water cooling cylinder, cylinder body is distributed according to internal die cavity
Feature be divided into first paragraph, second segment, the 3rd section and the 4th section, every section of each self-forming of white mould, wherein at the top of the 4th section of white mould into
Open up the 4 Φ 8mm apertures connected with internal die cavity during type, aforementioned four aperture and first paragraph, the 3rd section of white mould side it is small
The entrance of molding sand and supplement when hole is used to be coated with coating, hydrops outflow and moulding.
Preferably, the white module of the cylinder body of the shaping and running gate system are viscous by commercially available lost foam casting hot melt adhesive special
Connect.
Pass through the special glue sticking of commercially available lost foam casting between described four sections white moulds.
The utility model is used in the negative-pressure los mould casting of locomotive engine water cooling cylinder, generally comprises following steps：
（1）The white mold forming of cylinder body and running gate system shaping；（2）The white mould bonding group type of cylinder body；（3）The white die coating material of cylinder body is coated with；（4）Make
Type：（5）Cast；（6）Cleaning.
The utility model opens up what is connected with internal die cavity in shaping by sectional forming using the 4th section of white mould top
4 Φ 8mm apertures, and first paragraph, the aperture of the 3rd section of white mould side, type when satisfaction is coated with coating, hydrops outflow and moulding
The entrance of sand and the requirement of supplement.
Cast structure of the present utility model, casting accuracy height, flexible design, without the core in conventional cast and coremaker
Portion, is not in because of core size, clean manufacturing and the weight for mitigating spray in traditional sand casting, with machining
Surplus is small, and manufacturing cost is low, simple to operate, is easily mastered, highly reliable, it is easy to the advantage of batch production etc..
Brief description of the drawings
Fig. 1 is the schematic diagram of the white mould first paragraph of cylinder body in embodiment.
Fig. 2 is the schematic diagram of the white mould second segment of cylinder body in embodiment.
Fig. 3 is the schematic diagram of the 3rd section of the white mould of cylinder body in embodiment.
Fig. 4 is the schematic diagram of the 4th section of the white mould of cylinder body in embodiment.
Fig. 5 is running gate system shaping schematic view in embodiment.
Fig. 6 be in embodiment after the white mould bonding group type of cylinder body 3/4 tangent plane schematic diagram.
In figure, 1- first paragraphs, 2- second segments, the 3rd section of 3-, the 4th section of 4-；5- first paragraphs side aperture, 6- first paragraph die cavities,
7- second segment die cavities, the 3rd section of side aperture of 8-, 9- three-segment type chambers, the 4th section of top aperture of 10-, 11- running gate systems.
Embodiment
The present invention is described in detail in reference to embodiment and accompanying drawing.
Embodiment：Locomotive engine water cooling cylinder negative-pressure los mould casting structure, it is main to include the white module of cylinder body of shaping
With running gate system 11（Referring to accompanying drawing 5）, the white module of cylinder body bonds with running gate system 11（Referring to accompanying drawing 6）；The white module of cylinder body
It is bonded and is constituted successively by four sections of white moulds：According to the planform of locomotive engine water cooling cylinder, by cylinder body according to internal die cavity point
Cloth feature be divided into first paragraph 1, second segment 2, the 3rd section 3 and the 4th section 4（Referring to accompanying drawing 1-4）, every section of each self-forming of white mould, wherein
The 4 Φ 8mm apertures connected with internal die cavity, above-mentioned 4th section of top aperture 10 are opened up at the top of 4th section of 4 white mould in shaping
The entrance of molding sand and supplement when being used to be coated with coating, hydrops outflow and moulding with first paragraph side opening 5, the 3rd section of side aperture 8.
In embodiment, the white module of cylinder body and running gate system of shaping are bonded by commercially available lost foam casting hot melt adhesive special.
Pass through the special glue sticking of commercially available lost foam casting between four sections of white moulds.
Embodiment is used in locomotive engine water cooling cylinder negative-pressure los mould casting technique, mainly comprises the steps of：（1）
The white mold forming of cylinder body and running gate system shaping；（2）The white mould bonding group type of cylinder body；（3）The white die coating material of cylinder body is coated with；（4）Moulding：
（5）Cast；（6）Cleaning.
The step（1）In, according to the planform of locomotive engine water cooling cylinder, make the white mould of cylinder body sectional forming
（Referring to accompanying drawing 1-4）, cylinder body is divided into 4 sections, every section of each self-forming of white mould, wherein the 4th section white according to internal die cavity distribution characteristics
Aperture at the top of the 4 Φ 8mm connected with internal die cavity, aforementioned four aperture and first paragraph, the 3rd are opened up at the top of mould in shaping
The entrance of molding sand and supplement when the aperture of Duan Baimo sides is used to be coated with coating, hydrops outflow and moulding.
The step（2）In, the first paragraph 1 of the white mould of rear-bank rotor housing, second segment 2, the 3rd section 3 and the 4th section 4 will be molded successively
With the special glue sticking composition white mould of cylinder body of commercially available lost foam casting, the component of the bonding composition white mould of cylinder body and the cast system of shaping
System 11（Referring to accompanying drawing 5）It is bonded with commercially available lost foam casting hot melt adhesive special（Referring to accompanying drawing 6）.
The step（3）In, the white membrane module of rear-bank rotor housing will be bonded and be coated with commercially available paint specially for disappearing cast mold, when being coated with
Coating respectively enters each section of corresponding die cavity from first paragraph side aperture 5, the 3rd section of side aperture 8 and the 4th section of top aperture 10, fills
After full die cavity, unnecessary coating flows out from respective aperture, and hydrops flows out from nethermost first paragraph side aperture 5（Referring to accompanying drawing 6）；
It is put into after being dried in 40 ~ 55 DEG C of baking rooms, then is coated with as stated above second time after being coated with, is put into 40 ~ 55 DEG C of baking rooms and dries
It is dry stand-by.
The step（4）In, moulding is using rain type sand injection manner, vibrations consolidation 48 ~ 56HZ of frequency, vibrations total time
10 ~ 15 minutes, molding sand was respectively enterd respectively from first paragraph side aperture 5, the 3rd section of side aperture 8 and the 4th section of top aperture 10 during moulding
The corresponding die cavity of section is simultaneously full of die cavity, and uppermost 4th section of top aperture 10 also acts as the tight effect of stop-off in real time（Referring to attached
Fig. 6）.
The step（5）In, cast uses staged filling method, and pouring temperature is controlled at 1480 ~ 1500 DEG C, and cast is negative
0.020 ~ 0.025MPa is pressed, the dwell time is 10-20 minutes after cast.
The step（6）In, touch casting after cast, core sand is from from first paragraph side aperture 5, the 3rd section of side aperture 8 and
Four sections of top apertures 10 flow out.
Claims (3)
1. locomotive engine water cooling cylinder negative-pressure los mould casting structure：It is characterized in that the white module of cylinder body including shaping and pouring
Injection system, the white module of cylinder body is bonded with running gate system；The white module of cylinder body is bonded and constituted successively by four sections of white moulds：According to locomotive
The planform of engine water cooled cylinder, by cylinder body according to internal die cavity distribution characteristics be divided into first paragraph, second segment, the 3rd section and
4th section, every section of each self-forming of white mould, wherein opening up 4 Φ connected with internal die cavity at the top of the 4th section of white mould in shaping
The aperture of 8mm apertures, aforementioned four aperture and first paragraph, the 3rd section of white mould side is used to be coated with coating, hydrops outflow and moulding
When molding sand entrance and supplement.
2. locomotive engine water cooling cylinder negative-pressure los mould casting structure as claimed in claim 1：It is characterized in that it is described into
The white module of cylinder body and running gate system of type are bonded by commercially available lost foam casting hot melt adhesive special.
3. locomotive engine water cooling cylinder negative-pressure los mould casting structure as claimed in claim 1：It is characterized in that described four
Pass through the special glue sticking of commercially available lost foam casting between Duan Baimo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720248311.9U CN206550292U (en) | 2017-03-15 | 2017-03-15 | Locomotive engine water cooling cylinder negative-pressure los mould casting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720248311.9U CN206550292U (en) | 2017-03-15 | 2017-03-15 | Locomotive engine water cooling cylinder negative-pressure los mould casting structure |
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| CN201720248311.9U Active CN206550292U (en) | 2017-03-15 | 2017-03-15 | Locomotive engine water cooling cylinder negative-pressure los mould casting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394419A (en) * | 2019-07-25 | 2019-11-01 | 宁夏苏宁新能源设备有限公司 | A kind of vertical running castings of C-shaped channel |
| CN112045152A (en) * | 2020-08-06 | 2020-12-08 | 宁波拓铁机械有限公司 | Casting method and casting structure of large thick-section cylinder barrel ductile iron piece |
| CN112296279A (en) * | 2020-10-23 | 2021-02-02 | 上海五钢设备工程有限公司 | Novel split type round steel die casting process |
-
2017
- 2017-03-15 CN CN201720248311.9U patent/CN206550292U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394419A (en) * | 2019-07-25 | 2019-11-01 | 宁夏苏宁新能源设备有限公司 | A kind of vertical running castings of C-shaped channel |
| CN110394419B (en) * | 2019-07-25 | 2024-03-22 | 宁夏苏宁新能源设备有限公司 | Vertical casting mould of C type groove |
| CN112045152A (en) * | 2020-08-06 | 2020-12-08 | 宁波拓铁机械有限公司 | Casting method and casting structure of large thick-section cylinder barrel ductile iron piece |
| CN112045152B (en) * | 2020-08-06 | 2021-08-17 | 宁波拓铁机械有限公司 | Casting method and casting structure of large thick-section cylinder barrel ductile iron piece |
| CN112296279A (en) * | 2020-10-23 | 2021-02-02 | 上海五钢设备工程有限公司 | Novel split type round steel die casting process |
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