CN101966413B - Venturi scrubber valve body and manufacturing process thereof - Google Patents
Venturi scrubber valve body and manufacturing process thereof Download PDFInfo
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- CN101966413B CN101966413B CN201010284128.7A CN201010284128A CN101966413B CN 101966413 B CN101966413 B CN 101966413B CN 201010284128 A CN201010284128 A CN 201010284128A CN 101966413 B CN101966413 B CN 101966413B
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- valve body
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- venturi scrubber
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- nickel
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Abstract
The invention discloses a venturi scrubber valve body and a manufacturing process thereof. The venturi scrubber valve body is prepared from the following components in percentage by weight: 3.00 percent of carbon, 16.50 percent of chromium, 1.50 percent of manganese, 1.40 percent of silicon, 0.50 percent of molybdenum, 5.00 percent of nickel, 0.80 percent of aluminum, 0.05 percent of copper, less than or equal to 0.0004 percent of phosphorus, less than or equal to 0.05 percent of sulfur and the balance of iron and impurities. The manufacturing process comprises the steps of secondary heat treatment, annealing, quenching and tempering. According to the technical scheme, high-content elements, such as the chromium and the nickel, are used to improve the hardness and strength of products; and the secondary heat treatment process also can eliminate internal stress, reduce fissuring and cracking phenomenon and improve the performance stability of the products.
Description
Technical field
The present invention relates to a kind of cleaner and manufacturing process thereof, especially relate to a kind of Venturi scrubber valve body and manufacturing process thereof.
Background technology
Venturi Scrubber is a kind of wet process dust collection device, when dusty gas is by utilizing the undergauge of Venturi tube during Venturi tube, the flowing velocity of gas is increased.Because gas flow rate increase makes the pressure in Venturi tube reduce, thus make the liquid outside pipe be inhaled in pipe by aperture, liquid is atomized into fine drop simultaneously, absorption grit.Venturi washer is generally made up of entrance cylindrical section, circular cone contraction section, cylindrical throat and circular cone diffuser, and its inner surface is a surface of revolution being symmetrical in conduit axis.Venturi scrubber valve body mainly refers to circular cone diffuser, its upper end connects with cylindrical throat packing, but existing valve body is owing to adding metal component and the irrational reason of each component proportion, such as chromium, nickel constituent content is on the low side, effectively can not improve hardness and the intensity of valve body.In addition, existing washer valve body, owing to only carrying out a heat treatment in process of production, cannot effectively eliminate the internal stress produced in production process, causes cracking or crack performance in long-time use procedure, the unstable properties of valve body, also can have influence on the service life of valve body.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Venturi scrubber valve body and the manufacturing process thereof that can improve intensity.
Technical problem to be solved by this invention is achieved by the following technical solution: the weight percentage of each component of Venturi scrubber valve body is: carbon 3.00, chromium 16.50, manganese 1.50, silicon 1.40, molybdenum 0.50, nickel 5.00, aluminium 0.80, copper 0.05, phosphorus 0.0004, sulphur 0.05, all the other are iron and impurity.
The manufacturing process of Venturi scrubber valve body of the present invention, the weight percentage of each component of valve body is: carbon 3.00, chromium 16.50, manganese 1.50, silicon 1.40, molybdenum 0.50, nickel 5.00, aluminium 0.80, copper 0.05, phosphorus 0.0004, sulphur 0.05, all the other are iron and impurity, and technical process comprises the following steps: (1) modeling, and mould assembling is cast; (2) Chemical bath deposition; (3), after first time heat treatment, carry out roughing, and do air seal test; (4), after second time heat treatment, carry out fine finishining, and do air seal test; (5) ultrasonic examination inspection finished product inspection, packs after antirust treatment.
The technique scheme that the present invention adopts, the chromium of employing high-load, nickel element improve hardness and the intensity of product; Adopt secondary heat treatment technique also can eliminate internal stress, reduce crackle, crack performance, stability of enhancing product performance.
Detailed description of the invention
Embodiment:
Venturi scrubber valve body of the present invention, the weight percentage of its each component is: carbon 3.00, chromium 16.50, manganese 1.50, silicon 1.40, molybdenum 0.50, nickel 5.00, aluminium 0.80, copper 0.05, phosphorus 0.0004, sulphur 0.05, and all the other are iron and impurity.
The manufacturing process of Venturi scrubber valve body of the present invention, includes the following step: (1) modeling, and mould assembling is cast; (2) Chemical bath deposition; (3), after first time heat treatment, carry out roughing, and do air seal test; (4), after second time heat treatment, carry out fine finishining, and do air seal test; (5) ultrasonic examination inspection finished product inspection, packs after antirust treatment.
Heat-treatment of annealing process of the present invention: valve body is heated to 820 DEG C with stove, is incubated and within 2 hours, makes workpiece refinement crystalline substance material, statenchyma, then cool to less than 400 DEG C with the furnace and come out of the stove, reduce hardness, improve cutting ability, eliminate casting internal stress.
Heat-treatment quenching process: by workpiece heat to 860 DEG C of critical-temperatures, constant temperature 2 hours, makes it to organize austenitizing, and then quick tapping fog cools, and makes it structural transformation and becomes martensite.
Tempering heat treatment process: by workpiece heat to 500 DEG C, be incubated 1 hour, structural transformation is fully carried out, and stress comes out of the stove air cooling to room temperature after thoroughly eliminating, and keeps quenching hardness.
Claims (2)
1. a Venturi scrubber valve body, is characterized in that: the weight percentage of each component of valve body is: carbon 3.00, chromium 16.50, manganese 1.50, silicon 1.40, molybdenum 0.50, nickel 5.00, aluminium 0.80, copper 0.05, phosphorus 0.0004, sulphur 0.05, and all the other are iron and impurity.
2. a production technology for Venturi scrubber valve body, the weight percentage of each component of valve body is: carbon 3.00, chromium 16.50, manganese 1.50, silicon 1.40, molybdenum 0.50, nickel 5.00, aluminium 0.80, copper 0.05, phosphorus 0.0004, sulphur 0.05, all the other are iron and impurity, it is characterized in that: comprise the following steps: (1) modeling, and mould assembling is cast; (2) Chemical bath deposition; (3) first time heat-treatment of annealing process: valve body is heated to 820 DEG C with stove, be incubated within 2 hours, make workpiece refinement brilliantly expect, statenchyma, then cool to less than 400 DEG C with the furnace and come out of the stove, reduce hardness, improve cutting ability, eliminate casting internal stress, carry out roughing, and do air seal test; (4) second time heat-treatment quenching process: by workpiece heat to 860 DEG C of critical-temperatures, constant temperature 2 hours, makes it to organize austenitizing, and then quick tapping fog cools, and makes it structural transformation and becomes martensite; Drawing process: by workpiece heat to 500 DEG C, be incubated 1 hour, structural transformation is fully carried out, and stress comes out of the stove air cooling to room temperature after thoroughly eliminating, and keeps quenching hardness, carries out fine finishining, and do air seal test; (5) ultrasonic examination inspection finished product inspection, packs after antirust treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010284128.7A CN101966413B (en) | 2010-09-17 | 2010-09-17 | Venturi scrubber valve body and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010284128.7A CN101966413B (en) | 2010-09-17 | 2010-09-17 | Venturi scrubber valve body and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101966413A CN101966413A (en) | 2011-02-09 |
| CN101966413B true CN101966413B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010284128.7A Expired - Fee Related CN101966413B (en) | 2010-09-17 | 2010-09-17 | Venturi scrubber valve body and manufacturing process thereof |
Country Status (1)
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| CN (1) | CN101966413B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767631A (en) * | 2011-05-05 | 2012-11-07 | 上海威含德石油机械设备有限公司 | Orifice-plate type adjustable throttle valve and manufacturing method thereof |
| CN102676780B (en) * | 2012-05-30 | 2013-10-30 | 江苏华程工业制管股份有限公司 | Hardening and tempering technology of alloy-steel tube |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| IT1275287B (en) * | 1995-05-31 | 1997-08-05 | Dalmine Spa | SUPERMARTENSITIC STAINLESS STEEL WITH HIGH MECHANICAL AND CORROSION RESISTANCE AND RELATED MANUFACTURED PRODUCTS |
| JP2005082813A (en) * | 2003-09-04 | 2005-03-31 | Daido Steel Co Ltd | Prehardened steel for plastic molding die |
| KR100908624B1 (en) * | 2006-03-02 | 2009-07-21 | 히타치 긴조쿠 가부시키가이샤 | Pre-hardened steel with improved machinability and toughness and manufacturing method |
| CN100503870C (en) * | 2007-01-30 | 2009-06-24 | 陈亚 | Corrosion resisting alloy with higher density and high strength |
| CN101353769B (en) * | 2007-07-26 | 2011-10-05 | 傅丰仁 | Chromium 23 nickel 6 ferrite-austenitic stainless steel pipe and fabrication process thereof |
| CN101144142A (en) * | 2007-10-30 | 2008-03-19 | 武汉钢铁(集团)公司 | Heat treatment method of high-strength high-toughness hot continuous rolling steel plate for engineering machine |
| JP5412851B2 (en) * | 2009-01-29 | 2014-02-12 | 大同特殊鋼株式会社 | Steel for plastic molds and plastic molds |
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2010
- 2010-09-17 CN CN201010284128.7A patent/CN101966413B/en not_active Expired - Fee Related
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| CN101966413A (en) | 2011-02-09 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110209 Assignee: Xing Yuan power station, Jiangsu metallurgical equipment Manufacturing Co., Ltd Assignor: Lu Min|Zhu Huaping Contract record no.: 2014320000220 Denomination of invention: Venturi scrubber valve body and manufacturing process thereof License type: Exclusive License Record date: 20140319 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Effective date of registration: 20170601 Address after: 214500, No. 28, Li Gong Road, Xinqiao Town, Jiangsu, Jingjiang Patentee after: Xing Yuan power station, Jiangsu metallurgical equipment Manufacturing Co., Ltd Address before: 214500, No. 28, Li Gong Road, Xinqiao Town, Jiangsu, Jingjiang Co-patentee before: Lu Min Patentee before: Zhu Huaping |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |