CN101982556A - Machining method of traveling thrust wheel of large excavator - Google Patents
Machining method of traveling thrust wheel of large excavator Download PDFInfo
- Publication number
- CN101982556A CN101982556A CN 201010280690 CN201010280690A CN101982556A CN 101982556 A CN101982556 A CN 101982556A CN 201010280690 CN201010280690 CN 201010280690 CN 201010280690 A CN201010280690 A CN 201010280690A CN 101982556 A CN101982556 A CN 101982556A
- Authority
- CN
- China
- Prior art keywords
- thrust wheel
- manganese steel
- silicon
- casting
- blank
- 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
Images
Landscapes
- Forging (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a machining method of a traveling thrust wheel of a large excavator, which is characterized by comprising the following steps: firstly, casting silico-manganese steel into a thrust wheel blank and then carrying out machine finishing on the blank to obtain the finished product of the thrust wheel. The silico-manganese steel is prepared from the following components in percentage by weight: 0.14-0.25% of carbon, 0.8-2.0% of silicon, 0.8-2.0% of manganese, 0.35-1.2% of chromium, no more than 0.025% of sulfur, no more than 0.025% of phosphorus and the balance of ferrum and unavoidable impurities. In the invention, by adopting a casting method instead of a forging method, the section shape of the cast blank is approximate to that of the finished product, the size of the casting is easily controlled, and the machining allowance is smaller and uniform; and as the materials with higher strength grade are used instead of the original thrust wheel material, the mechanical properties and the service performances are not lower than the level of the original forging material, and the machining process is unchanged and is more easily operated.
Description
Technical field
The invention belongs to field of machining, be specifically related to a kind of working method of large excavator walking thrust wheel.
Background technology
Contain a plurality of heavy thrust wheels in the crawler unit of large-sized mining dredger, require to have high strength and wear resisting property.The general superior alloy steel forging post-treatment that adopts forms.Be subjected to forging process and accuracy limitations, its forging blank cross section is a patty, and actual thrust wheel finished product has the wheel hub boss, unnecessary like this material is all wanted processed and is fallen, and process redundancy is very big, causes therefore that waste of raw materials is big, the mechanical workout workload is big, production cycle is long, the manufacturing cost height.
If adopt the method processing of casting, directly the cast blank cross-sectional shape is processed into the shape approaching with finished product, process redundancy can reduce greatly, and the size of foundry goods can be than being easier to control.But limited by raw material, fluid origin thrust wheel mechanical property of existing material and use properties all can not satisfy produces the needs that use.
Summary of the invention
Goal of the invention: the objective of the invention is at the deficiencies in the prior art, provide a kind of under the prerequisite of mechanical property that guarantees thrust wheel and use properties, can effectively improve material use efficiency, reduce the working method of the large excavator walking thrust wheel of mechanical workout workload.
Technical scheme: the working method of large excavator walking thrust wheel of the present invention, at first adopt silicon manganese steel casting thrust wheel blank, become the thrust wheel finished product by machine finshing again; Described silicon manganese steel is made by following component: carbon 0.14～0.25%, silicon 0.8～2.0%, manganese 0.8～2.0%, chromium 0.35～1.2%, sulphur≤0.025%, phosphorus≤0.025%, surplus is iron and unavoidable impurities, by weight percentage, wherein, sulphur, phosphorus are foreign matter content, and is low more good more.
In the composition of described silicon manganese steel, described carbon is preferably 0.16～0.20%, and described silicon is preferably 1.4～1.6%, and described manganese is preferably 1.4～1.6%, and described chromium is preferably 0.4～0.6%.
In the composition of described silicon manganese steel, described carbon more preferably 0.18%, described silicon more preferably 1.5%, described manganese more preferably 1.5%, described chromium more preferably 0.5%.
Silicon manganese steel of the present invention is similar in production process such as smelting, cast, thermal treatment and other steel, only needs control chemical ingredients and thermal treatment cooling time, temperature to get final product.The preparation method of described silicon manganese steel is specially: said components is made through following steps:
Step 3, thermal treatment: quench: under the normal pressure, 900～950 ℃, water-cooled to 300 ℃ water outlet; Tempering: under the normal pressure, 300～350 ℃, be incubated 4 hours, come out of the stove.
Beneficial effect: the present invention's beneficial effect compared with prior art: (1) the present invention substitutes forging method with the method for casting, and cast blank cross-sectional shape and finished product are approaching, and casting dimension is controlled easily, and process redundancy is smaller and even; Owing to adopt more that the material of high strength grade replaces former thrust wheel material, mechanical property and use properties are not less than former forging material horizontal, and mechanical processing technique is constant and be easier to operation; (2) working method of the present invention adopts more that the material of high strength grade replaces former thrust wheel material, replace forging blank with cast blank, improved material use efficiency, starting material have been saved, reduced the mechanical workout workload, shortened the production cycle, be example on 20 cubic metres of excavators, to use, utilization rate of raw materials improves 30%, and machining allowance only is 25% of a former scheme; (3) chemical ingredients of the silicon manganese steel of the present invention's use adopts the carbon of lower aq and new alloying element proportioning, then through after optimizing thermal treatment process, can improve the intensity and the toughness of silicon manganese steel simultaneously,, make material have good welding property because carbon content is lower in the chemical ingredients; Do not contain precious metal alloys in the composition of silicon manganese steel, so production cost is lower, has economy; (4) silicon manganese steel of the present invention's use is through detecting, and its good mechanical properties meets former forging material horizontal fully, detects data and sees Table 1:
The mechanical performance data of table 1 silicon manganese steel of the present invention
| Re(MPa) | Rm(MPa) | A(％) | Akv(J) | HBW |
| 1000～1600 | 1200～1800 | ≥10 | ≥30 | 320～440 |
Description of drawings
Fig. 1 is former forging processing synoptic diagram;
Fig. 2 is foundry goods processing synoptic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by most preferred embodiment, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: as shown in Figure 2, a kind of working method of large excavator walking thrust wheel at first adopts silicon manganese steel casting thrust wheel blank, becomes the thrust wheel finished product by machine finshing again; Compare with the former forging processing of Fig. 1, thrust wheel process redundancy reduces greatly, has saved starting material, has reduced the mechanical workout workload.Among the figure, 1 is thrust wheel process redundancy part, and 2 is thrust wheel finished product cross section.Adopting more, the material of high strength grade replaces former thrust wheel material, mechanical property and use properties are not less than former forging material horizontal, the silicon manganese steel that adopts is made by following component: carbon 0.18%, silicon 1.5%, manganese 1.5%, chromium 0.5%, sulphur 0.01%, phosphorus 0.01%, surplus are iron and unavoidable impurities, by weight percentage.
The preparation method of employed silicon manganese steel is:
Step 3, thermal treatment: quench: under the normal pressure, 900～950 ℃, water-cooled to 300 ℃ water outlet; Tempering: under the normal pressure, 300～350 ℃, be incubated 4 hours, come out of the stove.
Each components contents among table 2 embodiment 2～5, by weight percentage;
| |
2 | 3 | 4 | 5 |
| Carbon % | 0.14 | 0.16 | 0.20 | 0.25 |
| Silicon % | 0.8 | 1.4 | 1.6 | 2.0 |
| Manganese % | 0.8 | 1.4 | 1.6 | 2.0 |
| Chromium % | 0.35 | 0.4 | 0.6 | 1.2 |
| Sulphur % | 0.025 | 0.015 | 0.01 | 0.008 |
| Phosphorus % | 0.025 | 0.02 | 0.01 | 0.005 |
Surplus is iron and unavoidable impurities.
As mentioned above, although represented and explained the present invention that with reference to specific preferred embodiment it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (3)
1. the working method of a large excavator walking thrust wheel is characterized in that: at first adopt silicon manganese steel casting thrust wheel blank, become the thrust wheel finished product by machine finshing again; Described silicon manganese steel is made by following component: carbon 0.14～0.25%, and silicon 0.8～2.0%, manganese 0.8～2.0%, chromium 0.35～1.2%, sulphur≤0.025%, phosphorus≤0.025%, surplus is iron and unavoidable impurities, by weight percentage.
2. the working method of large excavator walking thrust wheel according to claim 1, it is characterized in that: in the composition of described silicon manganese steel, described carbon is 0.16～0.20%, and described silicon is 1.4～1.6%, described manganese is 1.4～1.6%, and described chromium is 0.4～0.6%.
3. the working method of large excavator walking thrust wheel according to claim 2, it is characterized in that: in the composition of described silicon manganese steel, described carbon is 0.18%, and described silicon is 1.5%, and described manganese is 1.5%, and described chromium is 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806902A CN101982556B (en) | 2010-09-13 | 2010-09-13 | Machining method of traveling thrust wheel of large excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806902A CN101982556B (en) | 2010-09-13 | 2010-09-13 | Machining method of traveling thrust wheel of large excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101982556A true CN101982556A (en) | 2011-03-02 |
| CN101982556B CN101982556B (en) | 2012-07-25 |
Family
ID=43619466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102806902A Expired - Fee Related CN101982556B (en) | 2010-09-13 | 2010-09-13 | Machining method of traveling thrust wheel of large excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101982556B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605358A (en) * | 2019-10-18 | 2019-12-24 | 江苏徐工工程机械研究院有限公司 | Wear-resistant thrust wheel, crawler-type chassis and preparation method of wear-resistant thrust wheel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617188A (en) * | 1992-03-11 | 1994-01-25 | Nkk Corp | Wear resistant steel excellent in workability and weldability |
| CN1865481A (en) * | 2005-05-19 | 2006-11-22 | 宝钢集团上海梅山有限公司 | Process for preparing bainite antiwear steel plate |
-
2010
- 2010-09-13 CN CN2010102806902A patent/CN101982556B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617188A (en) * | 1992-03-11 | 1994-01-25 | Nkk Corp | Wear resistant steel excellent in workability and weldability |
| CN1865481A (en) * | 2005-05-19 | 2006-11-22 | 宝钢集团上海梅山有限公司 | Process for preparing bainite antiwear steel plate |
Non-Patent Citations (1)
| Title |
|---|
| 《液压挖掘机结构、原理及使用》 20021231 张铁 履带式行走装置 石油大学出版社 第38-39页 1-3 , 1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605358A (en) * | 2019-10-18 | 2019-12-24 | 江苏徐工工程机械研究院有限公司 | Wear-resistant thrust wheel, crawler-type chassis and preparation method of wear-resistant thrust wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101982556B (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103088249B (en) | Abrasion-resistant alloy cast iron material with high hardness for chute lining plate, and preparation method thereof | |
| CN103014550B (en) | High chromium multielement alloy wear resisting ball and manufacturing method thereof | |
| CN102154594B (en) | Chromium-niobium-boron alloy rare earth casting grinding ball and production process method thereof | |
| CN104694829A (en) | High-toughness wear-resisting medium manganese steel hot rolled plate and manufacturing method thereof | |
| AU2020442274A1 (en) | 690 MPa-graded easy-to-weld corrosion-resisting high-strength steel and manufacturing method therefor | |
| CN102851624B (en) | Ultrahigh-strength hot-rolled resin anchor rod reinforcement steel bar and production method thereof | |
| CN102418041B (en) | Production method for bearing steel | |
| CN103060668A (en) | Carbide-containing ductile iron and its making method | |
| CN104762548B (en) | A kind of desulfurization slag stock pump titanium nitrogen adds wear-and corrosion-resistant rich chromium cast iron and preparation method thereof altogether | |
| CN105002430A (en) | HB360 level complex-phase structure wear-resisting steel plate and production method thereof | |
| CN103789600A (en) | Hypereutectic high-chromium iron preparation method | |
| CN102162067A (en) | Steel for anticorrosion sucker rods in oil field and production method thereof | |
| CN100423862C (en) | Steel pipe-straightening roller for casting high chromium iron or high chrome steel | |
| CN106834959A (en) | High hardness wear-resisting ball material steel and its production method | |
| CN102071358A (en) | Low-alloy and high-intensity steel plate with yield strength being 550MPa level and production method | |
| CN103757529A (en) | Wet and dry general multi-element alloy lining plate for ball mill | |
| CN104946989A (en) | Manufacturing method of excavator bucket teeth | |
| CN103305772B (en) | A kind of high rigidity slag stock pump pump housing and preparation method thereof | |
| CN102367543B (en) | Boron steel ASTMA36-B medium and heavy plate and production process thereof | |
| CN102330013A (en) | Nodular cast iron roller of hot rolled seamless steel tube tandem mill and preparation method thereof | |
| CN103451564B (en) | Processing method of high-strength wear-resistant bucket lip of large excavator | |
| CN101982556B (en) | Machining method of traveling thrust wheel of large excavator | |
| CN101974873B (en) | Method for processing pivoting support ring rail of mining excavator | |
| CN104109810A (en) | High-C abrasion-resistant steel ball | |
| CN104294081A (en) | High-strength heat-resisting anti-friction casting tin-nickel bronze and preparation method thereof |
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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU YIPENG HEAVY INDUSTRY CO., LTD. Free format text: FORMER NAME: JIANGSU YIPENG FORGING MACHINERY MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214200 apricot Road, Yixing Economic Development Zone, Jiangsu Patentee after: Jiangsu Yi Peng Heavy Industry Co., Ltd. Address before: 214200 apricot Road, Yixing Economic Development Zone, Jiangsu Patentee before: Jiangsu Yipeng Forging Machinery Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171013 Address after: 214261 weeks Yizhen tie Cun week in Yixing City, Jiangsu city of Wuxi Province Patentee after: Wuxi win Heavy Industry Co., Ltd. Address before: 214200 apricot Road, Yixing Economic Development Zone, Jiangsu Patentee before: Jiangsu Yi Peng Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20190913 |