CN101342575A - Manufacturing process for high-power motor pig machine base - Google Patents
Manufacturing process for high-power motor pig machine base Download PDFInfo
- Publication number
- CN101342575A CN101342575A CNA2008100129286A CN200810012928A CN101342575A CN 101342575 A CN101342575 A CN 101342575A CN A2008100129286 A CNA2008100129286 A CN A2008100129286A CN 200810012928 A CN200810012928 A CN 200810012928A CN 101342575 A CN101342575 A CN 101342575A
- Authority
- CN
- China
- Prior art keywords
- sand
- machine base
- power motor
- manufacturing process
- pig machine
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
The present invention discloses a process for manufacturing a large power motor cast-iron stand, which aims at resolving the problem that the prior clay sand-typed dry patternmaking or the resin sand patternmaking casting process both at home or abroad for the large power motor cast-iron stand seriously pollutes the environment. The process of the present invention comprises the steps that gray cast iron with the trademark HT200, the stress strength value Rm being more than 190MPa and with the specified chemical compositions is selected; wet sand with the mixture ratio of 18 percent to 22 percent of new sand, 72 percent to 78 percent of old sand and 3 percent to 7 percent of bentonite, 1.5 percent to 3 percent of water content and the surface high-temperature-resistant coating spraying finishing process are adopted to made the casting mould; the tapping temperature of the iron liquid reaches more than 1400 DEG C, and the iron liquid is poured when the temperature decreases to 1350 DEG C, and the bottom pouring method is adopted. The process of the present invention is primary to adopt the wet molding sand to produce the large cast-iron stand, so that the size of the stand is precise, and the process is free from pollution; the cast-iron stand that is produced with the process of the present invention has good shock-absorption property, and the performance indexes of the cast-iron stand can completely substitute the steel-plate welding stand; moreover, the processing period is short, and the cost is low.
Description
Technical field
The present invention relates to the electric machine stand manufacturing process, be specifically related to manufacturing process for high-power motor pig machine base.
Background technology
Domestic at present, external low-power machine support generally adopts the casting pig support, and the employing aluminum alloy bed is also arranged; The motor pig machine base of the high H＜400mm in center, home and abroad are generally selected casting pig trade mark HT150 or HT200 for use.And the electric machine stand of the high H 〉=400mm in heavy-duty motor center, there is document once to disclose and adopted pig machine base abroad, see and rolled up " the high-power pig machine base motor " in 9 phases " the electric world " in 2004 45, and the domestic welded steel plate support of still using basically, the processing duration is longer, mechanical processing difficulty is bigger, and cost is very high, and motor oscillating is big, noise is high.
No matter home and abroad pig machine base casting technique adopts dry method moulding or phenolic sand molding casting techniques such as clay sand mold more, to the pollution of environment and very serious to the injury of the person.
Summary of the invention:
The open manufacturing process for high-power motor pig machine base of the present invention by selection, adopt new technology, solves the technical problem of high-power motor pig machine base.
Manufacturing process for high-power motor pig machine base of the present invention comprise select cast iron chemical composition and tensile strength, take that the tide mould sand mold is made, technologies such as molten iron temperature control, bottom running running gate system and the processing of difficult spary surface refractory coating spary.
Described high-power motor pig machine base material is a trade mark HT200 casting pig, and tensile strength values should should be controlled at shown in the table 1 in the scope in Rm＞190MPa, chemical composition heat analysis scope.
Table 1 pig machine base chemical composition (heat analysis) scope
| Constituent element | C | Si | Mn | S | P |
| Content (%) | 2.9～3.2 | 1.6～2.0 | 0.8～1.0 | ＜0.08 | ＜0.12 |
Described tide mould sand mold is made, and support is all put into nowel; Adopting tide mould sand is green sand molding, and the rational proportion of tide mould sand is 18%～22% fresh sand, 72%～78% old sand and 3%～7% bentonite, and total amount is not more than 100%, water content about 1.5%～3%; Best proportioning is 20% fresh sand, 75% old sand and 5% bentonite, water content about 1.8%.Simultaneously on support hired thug top by emit the gas rising head, at support seam position by emitting the gas rising head.After carrying out surperficial spary lead powder, die cavity is carried out surface drying handle.
Described molten iron temperature control, tapping temperature should reach more than 1400 ℃, and wherein YZR500 molten iron tapping temperature should reach 1400 ℃, and YZR560 molten iron tapping temperature should reach 1500 ℃; Bottom gating is adopted in cast when molten iron is reduced to 1350 ℃.
Technical research for high-power motor pig machine base is thought, it at first is selection, must reach the every technical performance index of high-power motor pig machine base, according to carbon silicon amount in knowhow and the cast iron and tensile strength graph of a relation (see figure 1), the research decision selects for use tensile strength values to be controlled at the casting pig HT200 in the scope shown in the table 1 in Rm＞190MPa, chemical composition scope.
And the high-power motor pig machine base inherent quality is crucial, especially the connecting portion of support hired thug and fuselage, because the difference of wall thickness, when molten steel solidification shrinks, be easy to crack, casting flaw such as shrinkage porosite, shrinkage cavity, the eliminate the effects of the act unfavorable factor of casting quality must be taked the rational process that suits.
1. design the most rational processing dimension of support inner chamber, the sub-size of stand leg and footing installation contact-making surface two ends and change the protruding whole plane that is; Determine the support processing scheme.
2. in order to ensure the support dimensional accuracy, support is all put into nowel.
3. on molding sand is selected for use, adopt tide mould sand (green-sand) moulding, wherein need to solve the easily problem of falling the tire of tide mould sand moulding with all strength; After inner chamber carries out surperficial spary lead powder, die cavity is carried out surface drying to be handled, solve the dry sand casting sand mold and make a concession the mechanical resistance (internal stress) that difference is brought, alleviated simultaneously and adopted the dry method moulding or phenolic sand molding brought to the pollution of environment and to the injury of the person.
4. in fusion process, furnace charge is carried out strictness control, strictness is operated by the technology rules, utilize electronics high temperature thermal detector test molten steel pouring temperature, two kinds of model supports are controlled temperature with the molten iron strictness, the molten iron tapping temperature reaches 1400 ℃ or 1500 ℃ respectively, cast when molten iron is reduced to 1350 ℃.
5. owing to the raising of support trade mark of casting iron, the tendency that produces shrinkage cavity, shrinkage porosite strengthens relatively, in order to eliminate this tendency, adopt bottom gating, simultaneously on support hired thug top by putting rising head, and at support seam position by emitting the gas rising head, reduced the generation of pore; The mode that its process of setting solidifies has basically in order been eliminated because of the feeding of solidification shrinkage molten iron and has not been gone up the tissue defects that produces.
This motor pig machine base manufacturing process is to utilize tide mould sand to produce large-scale pig machine base first at home, outward, support dimensional accuracy height, pollution-free; Utilize the pig machine base damping performance of this motor pig machine base fabrication process good, performance indications can substitute the welded steel plate support fully, the process-cycle is short, cost is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the relation curve of carbon silicon amount and tensile strength in the cast iron;
Fig. 2 is a support casting technique schematic diagram.
Symbol description among the figure: 280～320MPa 1,250～280MPa 2,180～210MPa 3,210MPa 4,210～250MPa 5,140～180MPa 6, cup 7, fuselage 8, sprue 9, cross gate 10, ingate 11, backplate 12, support hired thug 13, rising head 14.
The specific embodiment
For YZR500 and YZR560 high-power motor pig machine base, the technical performance of its material and index must be strict with.According to carbon silicone content in knowhow and the cast iron and tensile strength graph of relation (see figure 1), select for use tensile strength values at Rm＞190MPa casting pig (HT200); In the manufacturing process production technology of mulling, moulding and melting is adjusted and controlled, determine best prescription and technology.
Embodiment 1
As shown in Figure 1, YZR500 motor pig machine seat material and chemical composition are determined: select the casting pig (HT200) of tensile strength values at Rm＞190MPa for use, its chemical Composition Control is as shown in table 2:
Table 2YZR500 motor pig machine base chemical composition (heat analysis) scope
| Constituent element | C | Si | Mn | S | P |
| Content (%) | 2.9～3.2 | 1.6～2.0 | 0.8～1.0 | ＜0.08 | ＜0.12 |
The most rational size is determined in processing, the design of stand leg to the support inner chamber, and footing is installed the contact-making surface two ends and changed the protruding whole plane that is; Determine the support processing scheme.
As shown in Figure 2, for guaranteeing the support dimensional accuracy, support is all put into nowel.On molding sand is selected for use, adopt tide mould sand (green-sand) moulding, the proportioning of tide mould sand is 20% fresh sand, 75% old sand and 5% bentonite, water content about 1.8%.
After inner chamber carries out surperficial spary lead powder, die cavity is carried out surface drying to be handled, solved the dry sand casting sand mold and made a concession the mechanical resistance (internal stress) that difference is brought, alleviated simultaneously and adopted the dry method moulding or phenolic sand molding brought to the pollution of environment and to the injury of the person.
In fusion process, furnace charge is carried out strictness control, strictness is operated by the technology rules, utilizes the strict control of electronics high temperature thermal detector probe temperature temperature, and the molten iron tapping temperature should be higher than 1400 ℃, and pouring temperature should not be higher than 1350 ℃.
Adopt bottom gating, simultaneously on support hired thug top by putting rising head, and at support seam position by emitting the gas rising head, reduced the generation of pore, the mode that its process of setting solidifies basically in order, macro defect is eliminated in feeding in time.
The YZR500 motor pig machine base now is applied to motor production by Dalian Christian Breton Electric Machine Co., Ltd and Dalian Tianyuan Motors Co., Ltd., reduce purchase cost, shortened the production cycle, and in machining process, reduced difficulty of processing, improve productivity ratio, obtained user's favorable comment.
In the trial-manufacturing process of YZR500 pig machine base, pouring molten iron is carried out sample analysis, test for tensile strength, entrust Dalian Christian Breton Electric Machine Co., Ltd to test, every test result meets technological requirement fully shown in table 3, table 4.
Table 3YZR500 separately cast test bar tensile strength
| Material trademark | Tensile strength, Rm MPa |
| HT200 | 221 |
Table 4YZR500 support test block sampling chemical analysis results
| Constituent element | C | Si | Mn | S | P |
| Content (%) | 3.05 | 1.88 | 0.86 | 0.068 | 0.065 |
Use the same method pouring molten iron is taken a sample and delivered Dalian Product Quality Monitoring Detection Office in February, 2004, and every detection data have reached designing requirement fully, and (testing result is seen survey report: No. the 200402531020040th, Dalian W).
Embodiment 2
The YZR560 pig machine base is to develop on the basis of YZR560 welded steel plate support.On the size design of mould, different at the performance of steel plate and cast iron, a large amount of careful research work in conjunction with the research experience of YZR500 pig machine base, to the processing and fabricating of mould, have proposed a mould is dual-purpose or use more design and technology requirement.
As shown in Figure 1, YZR560 motor pig machine seat material and chemical composition are determined: select the casting pig (HT200) of tensile strength values at Rm＞190MPa for use, its chemical Composition Control is as shown in table 5:
Table 5YZR560 motor pig machine base chemical composition (heat analysis) scope
| Constituent element | C | Si | Mn | S | P |
| Content (%) | 2.9～3.2 | 1.6～2.0 | 0.8～1.0 | ＜0.08 | ＜0.12 |
The most rational size is determined in processing, the design of stand leg to the support inner chamber, and footing is installed the contact-making surface two ends and changed the protruding whole plane that is; Determine the support processing scheme.
As shown in Figure 2, for guaranteeing the support dimensional accuracy, support is all put into nowel.On molding sand is selected for use, adopt tide mould sand (green-sand) moulding, the proportioning of tide mould sand is 20% fresh sand, 75% old sand and 5% bentonite, tide mould sand water content about 1.8%.After inner chamber carries out surperficial spary lead powder, die cavity is carried out surface drying to be handled, solved the dry sand casting sand mold and made a concession the mechanical resistance (internal stress) that difference is brought, alleviated simultaneously and adopted the dry method moulding or phenolic sand molding brought to the pollution of environment and to the injury of the person.
In fusion process, furnace charge is carried out strictness control, strictness is operated by the technology rules, utilizes the strict control of electronics high temperature thermal detector probe temperature temperature, and the molten iron tapping temperature should be higher than 1500 ℃, and pouring temperature should not be higher than 1350 ℃.
Adopt bottom gating, simultaneously on support hired thug top by putting rising head, and at support seam position by emitting the gas rising head, reduced the generation of pore, the mode that its process of setting solidifies basically in order, macro defect is eliminated in feeding in time.
The YZR560 motor pig machine base now is applied to motor production by Dalian Christian Breton Electric Machine Co., Ltd and Dalian Tianyuan Motors Co., Ltd., reduce purchase cost, shortened the production cycle, and in machining process, reduced difficulty of processing, improve productivity ratio, obtained user's favorable comment.
In the trial-manufacturing process of YZR560 pig machine base, pouring molten iron is carried out sample analysis, test for tensile strength, entrust Dalian Christian Breton Electric Machine Co., Ltd to test, every test result meets technological requirement fully shown in table 6, table 7.
Table 6YZR560 separately cast test bar tensile strength
| Material trademark | Tensile strength, Rm MPa |
| HT200 | 221 |
Table 7YZR560 support test block sampling chemical analysis results
| Constituent element | C | Si | Mn | S | P |
| Content (%) | 3.07 | 2.20 | 1.20 | 0.058 | 0.055 |
In April, 2005, using the same method takes a sample and deliver the every detection data of Dalian Product Quality Monitoring Detection Office pouring molten iron has reached designing requirement fully (testing result has been seen survey report: No. the 200505531020050th, Dalian W).
Above casting yield can reach more than 98%.
Claims (9)
1, a kind of manufacturing process for high-power motor pig machine base is characterized in that, selects cast iron chemical composition and tensile strength, takes the tide mould sand mold to make, control molten iron temperature and make a bet technologies such as method and the processing of difficult spary surface refractory coating spary.
According to the described manufacturing process for high-power motor pig machine base of claim 1, it is characterized in that 2, the support material is a trade mark HT200 casting pig, tensile strength values should should be controlled at shown in the table 1 in the scope in Rm＞190MPa, chemical composition heat analysis scope.
Table 1 pig machine base chemical composition (heat analysis) scope
According to the described manufacturing process for high-power motor pig machine base of claim 1, it is characterized in that 3, described tide mould sand mold is made, and support is all put into nowel; Adopting tide mould sand is green sand molding; After carrying out surperficial spary lead powder, die cavity is carried out surface drying handle.
4, according to claim 1 or 3 described manufacturing process for high-power motor pig machine base, it is characterized in that the rational proportion of described tide mould sand is 18%～22% fresh sand, 72%～78% old sand and 3%～7% bentonite, total amount is not more than 100%, tide mould sand water content about 1.5%～3%.
According to the described manufacturing process for high-power motor pig machine base of claim 4, it is characterized in that 5, the best proportioning of tide mould sand is 20% fresh sand, 75% old sand and 5% bentonite, tide mould sand water content about 1.8%.
6, according to claim 1 or 3 described manufacturing process for high-power motor pig machine base, it is characterized in that, on support hired thug top by emit the gas rising head, at support seam position by emitting the gas rising head.
According to the described manufacturing process for high-power motor pig machine base of claim 1, it is characterized in that 7, its tapping temperature of described molten iron temperature is controlled at more than 1400 ℃, cast when molten iron is reduced to 1350 ℃.
8, according to the described manufacturing process for high-power motor pig machine base of claim 7, it is characterized in that, described control molten iron tapping temperature, YZR500 molten iron tapping temperature should reach 1400 ℃, and YZR560 molten iron tapping temperature should reach 1500 ℃.
According to the described manufacturing process for high-power motor pig machine base of claim 1, it is characterized in that 9, the described molten iron method of making a bet promptly is to adopt bottom gating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129286A CN101342575B (en) | 2008-08-26 | 2008-08-26 | Manufacturing process for high-power motor pig machine base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129286A CN101342575B (en) | 2008-08-26 | 2008-08-26 | Manufacturing process for high-power motor pig machine base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101342575A true CN101342575A (en) | 2009-01-14 |
| CN101342575B CN101342575B (en) | 2011-04-20 |
Family
ID=40244762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100129286A Expired - Fee Related CN101342575B (en) | 2008-08-26 | 2008-08-26 | Manufacturing process for high-power motor pig machine base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101342575B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102640A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Cast iron electromechanical annular cover and preparation method thereof |
| CN102101153A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Method for processing large-scale motor shell |
| CN102102160A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Cast iron fan cover and manufacturing method thereof |
| CN102328017A (en) * | 2011-07-13 | 2012-01-25 | 中核苏阀横店机械有限公司 | Resin sand |
| CN103658523A (en) * | 2013-12-27 | 2014-03-26 | 山西宇达集团有限公司 | Process method for producing large size sculpture through resin sand removable-flask moulding |
| CN107755640A (en) * | 2017-10-27 | 2018-03-06 | 襄阳新金开泵业有限公司 | A kind of pouring procedure |
| CN108311704A (en) * | 2018-01-03 | 2018-07-24 | 湖南精量重工科技有限公司 | A kind of precision casting production technology |
| CN109014065A (en) * | 2018-09-10 | 2018-12-18 | 杭州西子富沃德精密机械有限公司 | A kind of running gate system and pouring procedure of engine base of traction machine |
-
2008
- 2008-08-26 CN CN2008100129286A patent/CN101342575B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102640A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Cast iron electromechanical annular cover and preparation method thereof |
| CN102101153A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Method for processing large-scale motor shell |
| CN102102160A (en) * | 2011-01-04 | 2011-06-22 | 大连市金州区天源铸造机械厂 | Cast iron fan cover and manufacturing method thereof |
| CN102102640B (en) * | 2011-01-04 | 2012-10-31 | 大连市金州区天源铸造机械厂 | Cast iron electromechanical annular cover and preparation method thereof |
| CN102328017A (en) * | 2011-07-13 | 2012-01-25 | 中核苏阀横店机械有限公司 | Resin sand |
| CN103658523A (en) * | 2013-12-27 | 2014-03-26 | 山西宇达集团有限公司 | Process method for producing large size sculpture through resin sand removable-flask moulding |
| CN103658523B (en) * | 2013-12-27 | 2015-07-15 | 山西宇达集团有限公司 | Process method for producing large size sculpture through resin sand removable-flask moulding |
| CN107755640A (en) * | 2017-10-27 | 2018-03-06 | 襄阳新金开泵业有限公司 | A kind of pouring procedure |
| CN108311704A (en) * | 2018-01-03 | 2018-07-24 | 湖南精量重工科技有限公司 | A kind of precision casting production technology |
| CN109014065A (en) * | 2018-09-10 | 2018-12-18 | 杭州西子富沃德精密机械有限公司 | A kind of running gate system and pouring procedure of engine base of traction machine |
| CN109014065B (en) * | 2018-09-10 | 2024-02-23 | 杭州西子富沃德精密机械有限公司 | Casting system and casting method for tractor base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101342575B (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101342575B (en) | Manufacturing process for high-power motor pig machine base | |
| CN102019353B (en) | Precision casting molding method for complex thin-walled member | |
| CN103846392B (en) | The casting method of spheroidal graphite cast-iron knuckle | |
| CN103742536B (en) | The casting method of high-lead bronze copper sheathing | |
| CN107716872A (en) | A kind of casting method of large-scale working ways | |
| CN107159845A (en) | The casting system and its design method of a kind of elimination ZG35 valve casting defects | |
| CN102211174A (en) | Process for casting wear-resistant hammer head by compounding two kinds of metal liquid | |
| CN104972063A (en) | Method for manufacturing wax mould for precision investment casting | |
| CN104985118A (en) | Method for casting and producing glass mould roughcast by V-process molding process | |
| CN106513564A (en) | Bearing cover casting process | |
| CN105081281A (en) | Metal mold low-pressure casting process for cast-aluminum gearbox body of high-speed train | |
| CN102211148A (en) | Chill-free processing method of wind-driven generator hub | |
| CN103464727B (en) | Preparation method of enhanced magnesium alloy block coated magnesium alloy rod | |
| CN110834063A (en) | Sand mold casting process of aluminum-lithium alloy casting | |
| CN103878322B (en) | The casting method of railcar centre of pull steel-casting | |
| CN102861894A (en) | Production method for wind power equipment stator | |
| CN103658552B (en) | A kind of large cast steel support roller Integral casting die system and casting method | |
| CN203599476U (en) | Metal mold and metal mold casting device | |
| CN103042177B (en) | Stainless steel water faucet sand-coating casting process | |
| CN101962732A (en) | Austenite nodular cast iron diffuser and production method thereof | |
| CN102691079B (en) | Method for rapidly manufacturing low-temperature alloy casting mould | |
| CN104174816A (en) | Casting die and casting process of defect-free small gearbox for ocean platform | |
| CN103521702A (en) | Large-scale box part precoated sand shell-type casting technology method | |
| CN1212907C (en) | Casting method of metal substrate cooling wall | |
| CN103551509A (en) | HXB2 axle box 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: YU BAOLONG Free format text: FORMER OWNER: DALIAN JINZHOU TIANYUAN CASTING MACHINE WORKS Effective date: 20100728 Owner name: MA RUITING |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Baolong Inventor after: Ma Ruiting Inventor before: Yu Baolong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YU BAOLONG TO: YU BAOLONG MA RUITING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20100728 Address after: Castle Village Jinzhou Yongzheng Street District of Dalian City, Liaoning province 116100 Applicant after: Yu Baolong Co-applicant after: Ma Ruiting Address before: Castle Village Jinzhou Yongzheng Street District of Dalian City, Liaoning province 116100 Applicant before: Dalian Tianyuan Foundry Machinery Factory |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |