CN107570669A - Railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology - Google Patents
Railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology Download PDFInfo
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- CN107570669A CN107570669A CN201710766375.2A CN201710766375A CN107570669A CN 107570669 A CN107570669 A CN 107570669A CN 201710766375 A CN201710766375 A CN 201710766375A CN 107570669 A CN107570669 A CN 107570669A
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Abstract
The invention discloses a kind of railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology, it is to have merged Technology of EPC and graphite chilling technology, get out the graphite annulus of shaping, it is bolted in lost foam casting sandbox, by the dead head Foam Pattern for making shaping it is Nian Jie with wheel Foam Pattern after be placed in graphite annulus, and dry sand is filled into lost foam casting sandbox, after jolt ramming, under the negative pressure state of setting, poured using rising pouring bag and outpour wheel；Solve the problems, such as that water-glass sand regeneration and recovery utilization rate are low in traditional railway cast steel wheel casting technique, effectively reduce the consumption of quartz sand and the discharge of antiquated sand, the influence of control and reduction to ecological environment beneficial to wheel manufacturing cost.
Description
Technical field
The present invention relates to railway cast steel wheel production technical field, and in particular to a kind of railway cast steel wheel evaporative pattern graphite
Quench gravity foundry technology.
Background technology
The technique that domestic production railway cast steel wheel is poured into a mould using the moulding and rising pouring bag of graphite mould hanging sand lining at present, in
Entreat rising head to concentrate feeding, can be achieved again to the consecutive solidification of wheel hub from wheel rim to disc, and wheel rim dense structure, its technique into
Ripe, product quality is stable.But graphite mould institute hanging sand lining be water-glass sand, average monolithic wheel consumes quartz sand in 90kg or so,
Calculated according to 250,000 wheels are produced per year, nearly 2.25 ten thousand tons of quartz sand of year consumption, the scale of construction is quite huge.
In the long term, quartz sand is non-renewable resources, and high-quality quartz sand source is increasingly reduced, and price will climb year by year
Rise, the increase of wheel manufacturing cost can be caused.Particularly, limited by current water-glass sand regeneration techniques, a large amount of antiquated sands are outdoor
Storage, the ecological environment on periphery will be had a strong impact on, and restrict the bottleneck of Sustainable Development of Enterprises.
The content of the invention
It is an object of the invention to provide a kind of railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology, solves to pass
Water-glass sand recovery utilization rate is low in railway cast steel wheel production technology of uniting, and a large amount of antiquated sand discharges influence periphery Ecological environment
The problem of.
To solve above-mentioned technical problem, the present invention uses following technical scheme：
A kind of railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology, it is to have merged Technology of EPC with graphite to swash
Cold technique, the graphite annulus of shaping is got out, is bolted in lost foam casting sandbox, the dead head for making shaping is steeped
It is placed on after foam apperance is Nian Jie with wheel Foam Pattern in graphite annulus, and dry sand is filled into lost foam casting sandbox, through jolt ramming
Afterwards, under the negative pressure state of setting, poured using rising pouring bag and outpour wheel.
As present invention further optimization, above-mentioned graphite annulus is located at the lateral surface of corresponding rim for automobile wheel, and shaping is poured
Rising head Foam Pattern is located at hub for vehicle wheel upper center position, and dimple-shaped is designed as in the wheel Foam Pattern wheel bore of shaping
Shape, to reduce the axis hole allowance of wheel blanks.
As present invention further optimization, above-mentioned is injected using the cast of rising pouring bag, molten steel through dead head Foam Pattern,
Dead head Foam Pattern and wheel Foam Pattern gasify after meeting molten steel, and gas is connected in the vacuum pumping of lost foam casting sandbox
Walk, molten steel replaces the space of Foam Pattern, fills type to when setting riser height when molten steel, cast terminates, the molten steel in dead head
Feeding persistently is carried out to wheel body, after feeding terminates, sandbox pressure release, mould turnover knockout, takes wheel, antiquated sand is through magnetic separation, dedusting, drop
Wen Hou, it is online to recycle, it is also online to recycle after graphite annulus forces cooling.
Compared with prior art, the present invention can at least reach one in following beneficial effect：
1st, lost foam casting process is applied mature and stable at home, and its advantage is that the quartz sand of filling need not add binding agent,
Cyclic utilization rate can effectively solve water-glass sand regeneration and recovery in traditional railway cast steel wheel casting technique up to more than 95%
The problem of utilization rate is low, greatly reduce the consumption of quartz sand and the discharge of antiquated sand, beneficial to wheel manufacturing cost control and
Reduce the influence to ecological environment.
2nd, graphite chilling block technique at home using maturation, its advantage is that the big chill effect of graphite heat conducting coefficient is good, by
Corresponding rim for automobile wheel lateral surface sets graphite annulus, and rim for automobile wheel quickly solidifies in the presence of graphite annulus Quench, forms densification
Tissue, while in the presence of central dead head, realize from wheel rim to disc again to the consecutive solidification of wheel hub.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure mark for：1st, dead head Foam Pattern；2nd, wheel Foam Pattern；3rd, bolt；4th, graphite annulus；5th, dry sand；6、
Lost foam casting sandbox.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Specific embodiment 1：
As shown in figure 1, a kind of railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology, is to have merged lost foam casting skill
The advantages of art is with graphite chilling technology, the graphite annulus 4 of shaping is got out, is fixed on by bolt 3 in lost foam casting sandbox 6,
By make shaping dead head Foam Pattern 1 it is be bonded with wheel Foam Pattern 2 after be placed in graphite annulus 4, and to disappear molding
Filling dry sand 5 in sandbox 6 is made, after jolt ramming, under the negative pressure state of setting, is poured using rising pouring bag and outpours wheel.
In the present embodiment, in Fig. 1, the both ends thread root of bolt 3 is provided with positioning boss, the both ends of bolt 3 difference
Couple with graphite annulus 4 and lost foam casting sandbox 6, and be supported and position by the positioning boss at both ends, to ensure graphite
Ring 4 is highly consistent apart from the bottom of lost foam casting sandbox 6.
Specific embodiment 2：
As shown in figure 1, the present embodiment is that further instruction has been carried out on the basis of specific embodiment 1, graphite annulus 4 positioned at pair
The lateral surface of rim for automobile wheel is answered, the dead head Foam Pattern 1 of shaping is located at hub for vehicle wheel upper center position, the wheel bubble of shaping
Pit shape is designed as in the wheel bore of foam apperance 2, to reduce the axis hole allowance of wheel blanks.
Specific embodiment 3：
The present embodiment is to have carried out further instruction to casting process on the basis of specific embodiment 1, is poured using rising pouring bag
Note, molten steel inject through dead head Foam Pattern 1, gasify after dead head Foam Pattern 1 and the chance molten steel of wheel Foam Pattern 2, gas
The vavuum pump for being connected in lost foam casting sandbox 6 is taken away, and molten steel replaces the space of Foam Pattern, treats that molten steel fills type to setting and emitted
During open height, cast terminates, and the molten steel in dead head 1 persistently carries out feeding to wheel body, and rim for automobile wheel is in graphite annulus Quench
In the presence of quickly solidify, form the tissue of densification, while in the presence of central dead head, realize from wheel rim to disc again to
The consecutive solidification of wheel hub, after feeding terminates, sandbox pressure release, mould turnover knockout, take wheel, antiquated sand after magnetic separation, dedusting, cooling,
Line recycles, also online to recycle after graphite annulus semi-finals is freezed but.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, can in the range of disclosure, drawings and claims
A variety of variations and modifications are carried out with the building block to theme combination layout and/or layout.Except to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also will be apparent.
Claims (3)
1. a kind of railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology, is to have merged Technology of EPC and graphite
Chilling technology, it is characterised in that：Get out the graphite annulus of shaping（4）, pass through bolt（3）It is fixed on lost foam casting sandbox（6）
It is interior, the dead head Foam Pattern of shaping will be made（1）With wheel Foam Pattern（2）Graphite annulus is placed on after bonding（4）It is interior, and to
Lost foam casting sandbox（6）Interior filling dry sand（5）, after jolt ramming, under the negative pressure state of setting, poured using rising pouring bag and outpour car
Wheel.
2. railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology according to claim 1, it is characterised in that：Stone
Mo Huan（4）Positioned at the lateral surface of corresponding rim for automobile wheel, the dead head Foam Pattern of shaping（1）Positioned at hub for vehicle wheel upper center position
Put, the wheel Foam Pattern of shaping（2）Pit shape is designed as in wheel bore.
3. railway cast steel wheel evaporative pattern graphite Quench gravity foundry technology according to claim 1, it is characterised in that：Adopt
Poured into a mould with rising pouring bag, molten steel is through dead head Foam Pattern（1）Injection, dead head Foam Pattern（1）With wheel Foam Pattern（2）Meet
Gasify after molten steel, gas is connected in lost foam casting sandbox（6）Vavuum pump take away, molten steel replace Foam Pattern space,
Type is filled to when setting riser height when molten steel, and cast terminates, dead head（1）Interior molten steel persistently carries out feeding to wheel body,
After feeding terminates, sandbox pressure release, mould turnover knockout, wheel is taken, antiquated sand is online to recycle after magnetic separation, dedusting, cooling, graphite
It is also online to recycle after ring (4) forces cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766375.2A CN107570669B (en) | 2017-08-30 | 2017-08-30 | Lost foam graphite chilling gravity casting process for railway cast steel wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766375.2A CN107570669B (en) | 2017-08-30 | 2017-08-30 | Lost foam graphite chilling gravity casting process for railway cast steel wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107570669A true CN107570669A (en) | 2018-01-12 |
| CN107570669B CN107570669B (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710766375.2A Active CN107570669B (en) | 2017-08-30 | 2017-08-30 | Lost foam graphite chilling gravity casting process for railway cast steel wheel |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273963A (en) * | 2018-01-23 | 2018-07-13 | 共享装备股份有限公司 | A kind of casting method for preventing from generating shrinkage defect at the thick big wall of casting |
| CN108705038A (en) * | 2018-06-26 | 2018-10-26 | 百色皓海碳素有限公司 | The system for producing crusher abrasion-resistant blade casting using steel scrap |
| CN111375730A (en) * | 2018-12-29 | 2020-07-07 | 大同中车爱碧玺铸造有限公司 | Casting device and casting process |
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|---|---|---|---|---|
| US20040200595A1 (en) * | 2003-04-14 | 2004-10-14 | Shirley Mark S. | Method for casting objects with an improved riser arrangement |
| CN1759953A (en) * | 2005-10-27 | 2006-04-19 | 贾林夫 | Molding method for manufacturing ingot mold through vacuseal molding machine |
| CN101234409A (en) * | 2008-03-06 | 2008-08-06 | 天瑞集团铸造有限公司 | Method for manufacturing graphite iron chill casting mold |
| CN202087775U (en) * | 2011-06-18 | 2011-12-28 | 中信戴卡轮毂制造股份有限公司 | Aluminum wheel lost foam casting device |
| CN104353781A (en) * | 2014-10-27 | 2015-02-18 | 无锡乐华自动化科技有限公司 | Lost foam casting process of low-alloy cast steel wheel for port machinery |
| CN105642839A (en) * | 2016-03-21 | 2016-06-08 | 马鞍山市三川机械制造有限公司 | Casting device for flywheel of internal combustion engine |
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2017
- 2017-08-30 CN CN201710766375.2A patent/CN107570669B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040200595A1 (en) * | 2003-04-14 | 2004-10-14 | Shirley Mark S. | Method for casting objects with an improved riser arrangement |
| CN1759953A (en) * | 2005-10-27 | 2006-04-19 | 贾林夫 | Molding method for manufacturing ingot mold through vacuseal molding machine |
| CN101234409A (en) * | 2008-03-06 | 2008-08-06 | 天瑞集团铸造有限公司 | Method for manufacturing graphite iron chill casting mold |
| CN202087775U (en) * | 2011-06-18 | 2011-12-28 | 中信戴卡轮毂制造股份有限公司 | Aluminum wheel lost foam casting device |
| CN104353781A (en) * | 2014-10-27 | 2015-02-18 | 无锡乐华自动化科技有限公司 | Lost foam casting process of low-alloy cast steel wheel for port machinery |
| CN105642839A (en) * | 2016-03-21 | 2016-06-08 | 马鞍山市三川机械制造有限公司 | Casting device for flywheel of internal combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273963A (en) * | 2018-01-23 | 2018-07-13 | 共享装备股份有限公司 | A kind of casting method for preventing from generating shrinkage defect at the thick big wall of casting |
| CN108273963B (en) * | 2018-01-23 | 2020-03-10 | 共享装备股份有限公司 | Casting method for preventing shrinkage porosity defect at thick and large wall of casting |
| CN108705038A (en) * | 2018-06-26 | 2018-10-26 | 百色皓海碳素有限公司 | The system for producing crusher abrasion-resistant blade casting using steel scrap |
| CN111375730A (en) * | 2018-12-29 | 2020-07-07 | 大同中车爱碧玺铸造有限公司 | Casting device and casting process |
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| Publication number | Publication date |
|---|---|
| CN107570669B (en) | 2020-11-27 |
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