CN101230942B - Manufacturing method of build-up composite flange - Google Patents
Manufacturing method of build-up composite flange Download PDFInfo
- Publication number
- CN101230942B CN101230942B CN2007100025136A CN200710002513A CN101230942B CN 101230942 B CN101230942 B CN 101230942B CN 2007100025136 A CN2007100025136 A CN 2007100025136A CN 200710002513 A CN200710002513 A CN 200710002513A CN 101230942 B CN101230942 B CN 101230942B
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Abstract
The invention relates to the technical field of the manufacturing technique of flanges, especially relates to a resurfacing composite flange and the manufacturing method, and the main body of the flange is composed of a 201 type stainless steel. A sealing surface of the flange is composed of a 304 type stainless steel, and two parts are connected together through the resurfacing technology. The invention overcomes the problems of high cost and high price of the product only adopted the 304 type stainless steel, dear price and poor acid resistance of the product only adopted the 201 type stainless steel., and the welding property of the 201 and the 304 materials is good. Through resurfacing penetration, the product can embody the advantages of uneasy infiltration and good adhesion, and the flange which contacts with media and the flange which only adopts the 304 type stainless steel have the same acid resistance and antirust ability.
Description
Technical field
The present invention relates to the manufacturing technical field of flange, be specifically related to a kind of manufacture method of build-up composite flange.
Background technique
At present, it is that material forms by artificial machined into that the flange on the market mostly adopts 304 type stainless steels, because existing resource is continually developed and wasted, causes the stainless price of 304 types to rise steadily, thereby makes the cost of production of flange constantly increase.Because existing veneer flange is to use carbon steel (Q235,20#) or 16Mn to stick 304 (316L) to process, the flange that this processes is come out exists defectives such as easy to leak and adhesion is bad.
Summary of the invention
The objective of the invention is to defective, provide a kind of manufacture cost to adopt between 201 type stainless steels or the single employing 304 type stainless steels build-up composite flange that overall performance is better and manufacture method thereof between single at existing veneer flange.
Technological scheme of the present invention is as follows: a kind of build-up composite flange, and the flange main body is made of 201 type stainless steels, and the sealing surface of flange is made of 304 type stainless steels, and two-part link together by bead-welding technology.
The manufacture method of above-mentioned build-up composite flange comprises the steps:
(1) be processed into flange blank with 201 type stainless steels by turning process, thickness is reserved the surplus of 1～2mm on the basis of standard volume, and cylindrical and internal diameter are reserved the surplus of 1mm on the basis of standard volume;
(2) on the sealing station of flange, weld 304 type stainless steels and form sealing surface by bead-welding technology;
(3) with lathe the weldment finish turning is become standardized product.
The present invention overcome the stainless product cost height of single employing 304 types, cost an arm and a leg or the problem of single employing 201 type stainless steel acid resistance differences, and 201 with 304 material good welding performance, by the built-up welding through welding, product is embodied be difficult for infiltration, the advantage that adhesion is good, and as broad as long with the acid resistance of medium surface of contact and rust protection and common 304 type steel flanges.
Description of drawings
Fig. 1 is the structural representation of build-up composite flange.
Among the figure, 1. 2. flange facing (304 type stainless steel) of flange main body (201 type stainless steel)
Embodiment
As shown in the figure, the main body of build-up composite flange is made of 201 type stainless steels, and the sealing surface of flange is made of 304 type stainless steels, and two-part link together by bead-welding technology.The manufacture process of this build-up composite flange is as follows:
(1) be processed into flange blank with 201 type stainless steels by turning process, thickness is reserved the surplus of 1～2mm on the basis of standard volume, and cylindrical and internal diameter are reserved the surplus of 1mm, two surface chamfers on the basis of standard volume;
(2) on the sealing surface position of flange, directly weld one deck 304 type stainless steels by bead-welding technology and form flange facing, then, understand product by penetrant inspection and whether have the built-up welding problem with welding wire, welding rod; The stainless thickness of 304 types of welding is determined according to the size of the pairing sealing surface of flange of different model;
(3) with lathe the weldment finish turning is become standardized product.
Claims (1)
1. the manufacture method of a build-up composite flange comprises the steps:
(1) be processed into flange blank with 201 type stainless steels by turning process, thickness is reserved the surplus of 1～2mm on the basis of standard volume, and cylindrical and internal diameter are reserved the surplus of 1mm on the basis of standard volume;
(2) on the sealing station of flange, weld 304 type stainless steels and form sealing surface by bead-welding technology;
(3) with lathe the weldment finish turning is become standardized product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100025136A CN101230942B (en) | 2007-01-25 | 2007-01-25 | Manufacturing method of build-up composite flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100025136A CN101230942B (en) | 2007-01-25 | 2007-01-25 | Manufacturing method of build-up composite flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101230942A CN101230942A (en) | 2008-07-30 |
| CN101230942B true CN101230942B (en) | 2010-07-28 |
Family
ID=39897639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100025136A Expired - Fee Related CN101230942B (en) | 2007-01-25 | 2007-01-25 | Manufacturing method of build-up composite flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101230942B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822954B (en) * | 2020-07-10 | 2022-02-22 | 常熟市东升法兰有限公司 | Manufacturing method of corrosion-resistant stainless steel flange |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031808A (en) * | 1988-09-17 | 1989-03-22 | 朝阳市龙城区龙城机械厂 | Make the new method of steel flange |
-
2007
- 2007-01-25 CN CN2007100025136A patent/CN101230942B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031808A (en) * | 1988-09-17 | 1989-03-22 | 朝阳市龙城区龙城机械厂 | Make the new method of steel flange |
Non-Patent Citations (2)
| Title |
|---|
| 丁三元.不锈钢/碳钢复合法兰的使用原理与简易制作方法.中国井矿盐31 6.2000,31(6),8-10. |
| 丁三元.不锈钢/碳钢复合法兰的使用原理与简易制作方法.中国井矿盐31 6.2000,31(6),8-10. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101230942A (en) | 2008-07-30 |
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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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang precision flange pipe fittings Co., Ltd. Assignor: Zhang Jiju Contract record no.: 2011330000880 Denomination of invention: Manufacturing method of build-up composite flange Granted publication date: 20100728 License type: Exclusive License Open date: 20080730 Record date: 20110704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20150125 |
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| EXPY | Termination of patent right or utility model |