CN104439938A - Seamless manufacturing method for stainless steel flange - Google Patents
Seamless manufacturing method for stainless steel flange Download PDFInfo
- Publication number
- CN104439938A CN104439938A CN201410619090.2A CN201410619090A CN104439938A CN 104439938 A CN104439938 A CN 104439938A CN 201410619090 A CN201410619090 A CN 201410619090A CN 104439938 A CN104439938 A CN 104439938A
- Authority
- CN
- China
- Prior art keywords
- diameter section
- section
- flange
- stainless steel
- enlarged diameter
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
Abstract
The invention discloses a seamless manufacturing method for a stainless steel flange. The method includes the steps that a stainless steel blank is fused in a steel furnace, after mold casting, flange end face rough turning and fine turning, and large external diameter and small external diameter rough turning and fine turning are performed on the stainless steel blank, and the blank is warehoused after detection. Through the mode, the seamless manufacturing method for the stainless steel flange has the advantages of being low in manufacturing cost, simple in machining process and high in machining quality, the flange is free of welding seams, no stress concentration exists, and using is reliable.
Description
Technical field
The present invention relates to flange manufacture, particularly relate to a kind of seamless manufacture method of steel flange.
Background technology
Flange (Flange) be again ring flange or bead.Flange makes pipe and the interconnective part of pipe, is connected to pipe end.Perforation on flange, bolt makes two flanges be close to.Liner containment is used between flange.Steel flange can not produce burn into spot corrosion, corrosion, not easily be worn.Stainless steel is one of material that in metal material for building, intensity is the highest.Because stainless steel has good corrosion resistance, so it can make structure member for good and all keep the integrality of engineering design.Chromium stainless steel punching press flange also integrates mechanical strength and deep drawing quality, is easy to the processing and manufacturing of parts, can meet the needs of architect and structural design personnel.All metals all can react with the oxygen in air, form oxide-film on surface.
Flange divides be threaded (silk connects) flange and welded flange.Welded flange, owing to there is welding stress or weld defect, causes the poor quality of welded flange, is not suitable in high pressure, in high-temperature equal pressure container.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of seamless manufacture method of steel flange, has low cost of manufacture, process is simple, crudy is high, flange no-welding-seam, there is not stress concentration phenomenon, uses the advantages such as reliable.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the seamless manufacture method providing a kind of steel flange, comprising:
Step one, be warming up to 1180 DEG C at converter, in this converter, refining goes out stainless steel blank, and wherein the weight of each chemical element of stainless steel steel is composed as follows: carbon 0.01 ~ 0.03wt%, Si≤0.00 ~ 0.1wt%, chromium 16 ~ 18wt%, nickel 12 ~ 15wt%, manganese 0.5 ~ 2wt%, silicon 0.01 ~ 0.03wt%, phosphorus 0.015 ~ 0.035wt%, molybdenum 1 ~ 3wt%, surplus are iron.Step 2, to be poured in mould by melted stainless steel blank and cast, according to layout design demand cast stainless steel flange blank, described flange blank is dish dress parts, and described dish dress parts comprise enlarged diameter section and reduced diameter section;
Step 3, be installed on rotary disk by flange blank, rough turn enlarged diameter section left and right end face, rough turn little direct section left side, being wherein 5mm to the cutting depth of enlarged diameter section right side, is 6mm to the little straight cutting depth through section left side;
The left and right end face of step 4, half finish turning enlarged diameter section, its working process parameter is: cutting depth 3mm, and cutting speed is 70 ms/min; The right side of half finish turning smaller diameter end;
The left and right end face of step 5, finish turning enlarged diameter section and the right side of little direct section;
Step 6, directly carry out roughing through section and the straight greatly cylinder through section to little, wherein enlarged diameter section roughing technological parameter is: cutting depth is 9mm, and cutting speed is 65 ms/min, and allowance is 3mm; Reduced diameter section roughing technological parameter is: cutting depth is 12mm, and cutting speed is 65 ms/min, and allowance is 4mm;
Step 7, carry out fine finishining to reduced diameter section and the straight greatly cylinder through section, wherein enlarged diameter section fine-processing technique parameter is: cutting depth is 3mm, and cutting speed is 50 ms/min, and allowance is 2mm; Reduced diameter section roughing technological parameter is: cutting depth is 4mm, and cutting speed is 60 ms/min, and allowance is 3.5mm;
Step 8, to the flange mechanical chamfering and the detection that complete processing, qualified warehouse-in, defectively does over again.
In the present invention's preferred embodiments, in described step 2, the diameter of enlarged diameter section is 250mm, and the diameter of reduced diameter section is 200mm.
In the present invention's preferred embodiments, rough turnly in described step 3 select 93 inclined end surface lathe tools, rake face shape is planar band chamfered edge type.
The invention has the beneficial effects as follows: the seamless manufacture method of a kind of steel flange of the present invention, there is low cost of manufacture, process is simple, crudy is high, flange no-welding-seam, there is not stress concentration phenomenon, use the advantages such as reliable.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
A seamless manufacture method for steel flange, comprising:
Step one, be warming up to 1180 DEG C at converter, in this converter, refining goes out stainless steel blank, and wherein the weight of each chemical element of stainless steel steel is composed as follows: carbon 0.01 ~ 0.03wt%, Si≤0.00 ~ 0.1wt%, chromium 16 ~ 18wt%, nickel 12 ~ 15wt%, manganese 0.5 ~ 2wt%, silicon 0.01 ~ 0.03wt%, phosphorus 0.015 ~ 0.035wt%, molybdenum 1 ~ 3wt%, surplus are iron.Step 2, to be poured in mould by melted stainless steel blank and cast, according to layout design demand cast stainless steel flange blank, described flange blank is dish dress parts, and described dish dress parts comprise enlarged diameter section and reduced diameter section;
Step 3, be installed on rotary disk by flange blank, rough turn enlarged diameter section left and right end face, rough turn little direct section left side, being wherein 5mm to the cutting depth of enlarged diameter section right side, is 6mm to the little straight cutting depth through section left side;
The left and right end face of step 4, half finish turning enlarged diameter section, its working process parameter is: cutting depth 3mm, and cutting speed is 70 ms/min; The right side of half finish turning smaller diameter end;
The left and right end face of step 5, finish turning enlarged diameter section and the right side of little direct section;
Step 6, directly carry out roughing through section and the straight greatly cylinder through section to little, wherein enlarged diameter section roughing technological parameter is: cutting depth is 9mm, and cutting speed is 65 ms/min, and allowance is 3mm; Reduced diameter section roughing technological parameter is: cutting depth is 12mm, and cutting speed is 65 ms/min, and allowance is 4mm;
Step 7, carry out fine finishining to reduced diameter section and the straight greatly cylinder through section, wherein enlarged diameter section fine-processing technique parameter is: cutting depth is 3mm, and cutting speed is 50 ms/min, and allowance is 2mm; Reduced diameter section roughing technological parameter is: cutting depth is 4mm, and cutting speed is 60 ms/min, and allowance is 3.5mm;
Step 8, to the flange mechanical chamfering and the detection that complete processing, qualified warehouse-in, defectively does over again.
In described step 2, the diameter of enlarged diameter section is 250mm, and the diameter of reduced diameter section is 200mm.
Rough turnly in described step 3 select 93 inclined end surface lathe tools, rake face shape is planar band chamfered edge type.
The invention has the beneficial effects as follows: the seamless manufacture method of a kind of steel flange of the present invention, there is low cost of manufacture, process is simple, crudy is high, flange no-welding-seam, there is not stress concentration phenomenon, use the advantages such as reliable.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a seamless manufacture method for steel flange, is characterized in that, comprising:
Step one, be warming up to 1180 DEG C at converter, in this converter, refining goes out stainless steel blank, and wherein the weight of each chemical element of stainless steel steel is composed as follows: carbon 0.01 ~ 0.03wt%, Si≤0.00 ~ 0.1wt%, chromium 16 ~ 18wt%, nickel 12 ~ 15wt%, manganese 0.5 ~ 2wt%, silicon 0.01 ~ 0.03wt%, phosphorus 0.015 ~ 0.035wt%, molybdenum 1 ~ 3wt%, surplus are iron;
Step 2, to be poured in mould by melted stainless steel blank and cast, according to layout design demand cast stainless steel flange blank, described flange blank is dish dress parts, and described dish dress parts comprise enlarged diameter section and reduced diameter section;
Step 3, be installed on rotary disk by flange blank, rough turn enlarged diameter section left and right end face, rough turn little direct section left side, being wherein 5mm to the cutting depth of enlarged diameter section right side, is 6mm to the little straight cutting depth through section left side;
The left and right end face of step 4, half finish turning enlarged diameter section, its working process parameter is: cutting depth 3mm, and cutting speed is 70 ms/min; The right side of half finish turning smaller diameter end;
The left and right end face of step 5, finish turning enlarged diameter section and the right side of little direct section;
Step 6, directly carry out roughing through section and the straight greatly cylinder through section to little, wherein enlarged diameter section roughing technological parameter is: cutting depth is 9mm, and cutting speed is 65 ms/min, and allowance is 3mm; Reduced diameter section roughing technological parameter is: cutting depth is 12mm, and cutting speed is 65 ms/min, and allowance is 4mm;
Step 7, carry out fine finishining to reduced diameter section and the straight greatly cylinder through section, wherein enlarged diameter section fine-processing technique parameter is: cutting depth is 3mm, and cutting speed is 50 ms/min, and allowance is 2mm; Reduced diameter section roughing technological parameter is: cutting depth is 4mm, and cutting speed is 60 ms/min, and allowance is 3.5mm;
Step 8, to the flange mechanical chamfering and the detection that complete processing, qualified warehouse-in, defectively does over again.
2. the seamless manufacture method of steel flange according to claim 1, is characterized in that, in described step 2, the diameter of enlarged diameter section is 250mm, and the diameter of reduced diameter section is 200mm.
3. the seamless manufacture method of steel flange according to claim 1, is characterized in that, rough turnly in described step 3 selects 93 inclined end surface lathe tools, and rake face shape is planar band chamfered edge type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619090.2A CN104439938A (en) | 2014-11-07 | 2014-11-07 | Seamless manufacturing method for stainless steel flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410619090.2A CN104439938A (en) | 2014-11-07 | 2014-11-07 | Seamless manufacturing method for stainless steel flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104439938A true CN104439938A (en) | 2015-03-25 |
Family
ID=52887104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410619090.2A Pending CN104439938A (en) | 2014-11-07 | 2014-11-07 | Seamless manufacturing method for stainless steel flange |
Country Status (1)
| Country | Link |
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| CN (1) | CN104439938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581390A (en) * | 2018-05-10 | 2018-09-28 | 巢湖市南特精密制造有限公司 | A kind of ring flange method for turning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN101357431A (en) * | 2008-09-10 | 2009-02-04 | 陆兆祥 | Flange fabrication technology |
| KR20100113305A (en) * | 2009-04-13 | 2010-10-21 | 주식회사 원프렌지 | Method for manufacturing flange |
| CN101927419A (en) * | 2009-06-19 | 2010-12-29 | 扬州市龙洋法兰管业制造有限公司 | Flange processing process |
| CN102294457A (en) * | 2011-08-02 | 2011-12-28 | 罗勇 | Flange blank casting process with effect of saving used materials |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
-
2014
- 2014-11-07 CN CN201410619090.2A patent/CN104439938A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN101357431A (en) * | 2008-09-10 | 2009-02-04 | 陆兆祥 | Flange fabrication technology |
| KR20100113305A (en) * | 2009-04-13 | 2010-10-21 | 주식회사 원프렌지 | Method for manufacturing flange |
| CN101927419A (en) * | 2009-06-19 | 2010-12-29 | 扬州市龙洋法兰管业制造有限公司 | Flange processing process |
| CN102294457A (en) * | 2011-08-02 | 2011-12-28 | 罗勇 | Flange blank casting process with effect of saving used materials |
| CN102717237A (en) * | 2012-06-28 | 2012-10-10 | 江苏金源锻造股份有限公司 | Method for forming wind power flange |
Non-Patent Citations (1)
| Title |
|---|
| 天若有情不老天: "法兰盘课程设计", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581390A (en) * | 2018-05-10 | 2018-09-28 | 巢湖市南特精密制造有限公司 | A kind of ring flange method for turning |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |