CN110918865A - Forging method of flange forging - Google Patents
Forging method of flange forging Download PDFInfo
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- CN110918865A CN110918865A CN201911403085.7A CN201911403085A CN110918865A CN 110918865 A CN110918865 A CN 110918865A CN 201911403085 A CN201911403085 A CN 201911403085A CN 110918865 A CN110918865 A CN 110918865A
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- forging
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- flange forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
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Abstract
The invention discloses a forging method of a flange forging, which comprises the following steps of firstly, purchasing raw materials; step two, blanking; step three, heating; step four, forging; step five, heat treatment; step six, flaw detection; in the first step, manually checking materials required by the flange forging, and listing a supply list in a computer; selecting and purchasing 16Mn round steel, checking a material guarantee certificate after purchasing, carrying out chemical analysis on a real object, and checking the real object with the material guarantee certificate; in the second step, the weight, the shape and the length of the flange forging needing to be forged are calculated manually, and the marks are used for spraying paint for marking.
Description
Technical Field
The invention relates to the field of flange forgings, in particular to a method for forging a flange forging.
Background
Flanges are parts that interconnect pipes and valves, connected to pipe ends; the flange forging is a product with the best mechanical property in flange products, and is continuously beaten after being cut, the price and the mechanical property are higher than those of common cast flanges by one grade, the raw material of the traditional flange forging is generally a tube blank, the durability is low, the quality is poor, meanwhile, the traditional flange forging method adopts beating for forging, time and labor are wasted, the machining allowance is small, the universality is low, the method is not suitable for forging the flange forging under different conditions, the productivity is low, the operation is complex, the size is accurate and low, the cost is not saved, the labor intensity of a user is increased, and the user fatigue is caused; in view of these defects, it is necessary to design a forging method of a flange forging.
Disclosure of Invention
The invention aims to provide a method for forging a flange forging, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a forging method of a flange forging comprises the steps of firstly, purchasing raw materials; step two, blanking; step three, heating; step four, forging; step five, heat treatment; step six, flaw detection;
wherein in the first step, the raw material purchasing comprises the following steps:
1) manually checking materials required by the flange forging, and listing a supply list in a computer;
2) selecting and purchasing 16Mn round steel, checking a material guarantee certificate after purchasing, carrying out chemical analysis on a real object, and checking the real object with the material guarantee certificate;
wherein in the second step, the blanking comprises the following steps:
1) manually calculating the weight, the shape and the length of the flange forging to be forged, and marking by using mark spray painting;
2) forging the raw material along the axial direction by using an upsetter until the length and the height meet the requirements, and then placing the raw material in a shady and cool place for cooling;
3) manually cutting the forged material along the paint spraying mark by using a sawing machine until the material is formed;
wherein in the third step, the heating comprises the following steps:
1) manually polishing the original part of the flange forging in the step two 3) by using a polishing machine until the surface is smooth;
2) opening the calcining furnace, placing the polished original piece of the flange forging into the calcining furnace, raising the temperature to 1000-1500 ℃, and calcining for 1-2 h;
3) after the calcination is finished, manually spraying inert gas into the calcination furnace, and cooling the original part of the flange forging until the original part of the flange forging is cooled to normal temperature;
4) taking out the original part of the flange forging, and storing the original part in a shade place;
wherein in the fourth step, the forging comprises the following steps:
1) adopting a free forging mode, heating a forging machine to 1000-1200 ℃, and manually forging by adopting the forging machine;
2) forging at a forging ratio of 1.8, and gradually cooling to 600-700 ℃ during forging until the forging is finished;
3) manually taking out the forged flange forging, and washing and cooling the flange forging by using clear water;
wherein in the fifth step, the heat treatment comprises the steps of:
1) manually placing the forged flange forging in a heating furnace, adjusting the temperature to 900-;
2) gradually reducing the temperature of the heating furnace to 800-;
and in the sixth step, manually using a grinding machine to remove scale and burrs on the surface of the flange forging, using a flaw detector to detect flaws, and packaging and storing the flange forging qualified for flaw detection in a shade place.
According to the technical scheme, in the step one 2), the total quantity after purchase is compared with a computer supply list.
According to the technical scheme, in the second step 3), clear water is used for leaching during cutting.
According to the technical scheme, in the step four 1), the original parts of the flange forging are soaked by water before section burning.
According to the technical scheme, in the step five 2), an air cooler can be used for cooling.
According to the technical scheme, in the sixth step, the surface condition of the flange forging is observed and recorded every month.
Compared with the prior art, the invention has the following beneficial effects: the forging method of the flange forging piece adopts 16Mn round steel as raw material to forge, has high durability and better quality, adopts the upsetting machine to forge, the calcining furnace to calcine and the forging machine to forge, is simpler and more convenient, has large machining allowance and large universality, is suitable for forging the flange forging piece under different conditions, has high production efficiency, simple operation and accurate size, saves cost, saves time and labor, reduces the labor intensity of users, and avoids causing user fatigue.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a forging method of a flange forging comprises the steps of firstly, purchasing raw materials; step two, blanking; step three, heating; step four, forging; step five, heat treatment; step six, flaw detection;
wherein in the first step, the raw material purchasing comprises the following steps:
1) manually checking materials required by the flange forging, and listing a supply list in a computer;
2) selecting and purchasing 16Mn round steel, checking a material guarantee certificate after purchasing, carrying out chemical analysis on a real object, checking with the material guarantee certificate, and comparing the total quantity after purchasing with a computer supply list;
wherein in the second step, the blanking comprises the following steps:
1) manually calculating the weight, the shape and the length of the flange forging to be forged, and marking by using mark spray painting;
2) forging the raw material along the axial direction by using an upsetter until the length and the height meet the requirements, and then placing the raw material in a shady and cool place for cooling;
3) manually cutting the forged material along the paint spraying mark by using a sawing machine, and leaching by using clear water during cutting until the material is formed;
wherein in the third step, the heating comprises the following steps:
1) manually polishing the original part of the flange forging in the step two 3) by using a polishing machine until the surface is smooth;
2) opening the calcining furnace, placing the polished original piece of the flange forging into the calcining furnace, raising the temperature to 1000-1500 ℃, and calcining for 1-2 h;
3) after the calcination is finished, manually spraying inert gas into the calcination furnace, and cooling the original part of the flange forging until the original part of the flange forging is cooled to normal temperature;
4) taking out the original part of the flange forging, and storing the original part in a shade place;
wherein in the fourth step, the forging comprises the following steps:
1) adopting a free forging mode, heating a forging machine to 1000-1200 ℃, manually forging by adopting the forging machine, and soaking an original piece of the flange forging piece by using water before section firing;
2) forging at a forging ratio of 1.8, and gradually cooling to 600-700 ℃ during forging until the forging is finished;
3) manually taking out the forged flange forging, and washing and cooling the flange forging by using clear water;
wherein in the fifth step, the heat treatment comprises the steps of:
1) manually placing the forged flange forging in a heating furnace, adjusting the temperature to 900-;
2) gradually reducing the temperature of the heating furnace to 800-;
and in the sixth step, manually using a grinding machine to remove scale and burrs on the surface of the flange forging, using a flaw detector to detect flaws, packaging the flange forging with qualified flaw detection, storing the flange forging in a shade place, and observing and recording the surface condition of the flange forging every other month.
Based on the above, the forging method has the advantages that the 16Mn round steel is adopted as the raw material for forging, the quality is better, meanwhile, the upsetting machine is adopted for forging, the calcining furnace is adopted for calcining, and the forging machine is adopted for forging, so that the forging method is simpler and more convenient, the machining allowance is large, the universality is large, the forging method is suitable for forging flange forgings under different conditions, the productivity is high, the operation is simple, the size is accurate, the cost is saved, the time and the labor are saved, the labor intensity of users is reduced, and the user fatigue is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A forging method of a flange forging comprises the steps of firstly, purchasing raw materials; step two, blanking; step three, heating; step four, forging; step five, heat treatment; step six, flaw detection; the method is characterized in that:
wherein in the first step, the raw material purchasing comprises the following steps:
1) manually checking materials required by the flange forging, and listing a supply list in a computer;
2) selecting and purchasing 16Mn round steel, checking a material guarantee certificate after purchasing, carrying out chemical analysis on a real object, and checking the real object with the material guarantee certificate;
wherein in the second step, the blanking comprises the following steps:
1) manually calculating the weight, the shape and the length of the flange forging to be forged, and marking by using mark spray painting;
2) forging the raw material along the axial direction by using an upsetter until the length and the height meet the requirements, and then placing the raw material in a shady and cool place for cooling;
3) manually cutting the forged material along the paint spraying mark by using a sawing machine until the material is formed;
wherein in the third step, the heating comprises the following steps:
1) manually polishing the original part of the flange forging in the step two 3) by using a polishing machine until the surface is smooth;
2) opening the calcining furnace, placing the polished original piece of the flange forging into the calcining furnace, raising the temperature to 1000-1500 ℃, and calcining for 1-2 h;
3) after the calcination is finished, manually spraying inert gas into the calcination furnace, and cooling the original part of the flange forging until the original part of the flange forging is cooled to normal temperature;
4) taking out the original part of the flange forging, and storing the original part in a shade place;
wherein in the fourth step, the forging comprises the following steps:
1) adopting a free forging mode, heating a forging machine to 1000-1200 ℃, and manually forging by adopting the forging machine;
2) forging at a forging ratio of 1.8, and gradually cooling to 600-700 ℃ during forging until the forging is finished;
3) manually taking out the forged flange forging, and washing and cooling the flange forging by using clear water;
wherein in the fifth step, the heat treatment comprises the steps of:
1) manually placing the forged flange forging in a heating furnace, adjusting the temperature to 900-;
2) gradually reducing the temperature of the heating furnace to 800-;
and in the sixth step, manually using a grinding machine to remove scale and burrs on the surface of the flange forging, using a flaw detector to detect flaws, and packaging and storing the flange forging qualified for flaw detection in a shade place.
2. The forging method of the flange forging according to claim 1, wherein the forging method comprises the following steps: in the step one 2), the total quantity after purchase is compared with a computer supply list.
3. The forging method of the flange forging according to claim 1, wherein the forging method comprises the following steps: in the second step 3), clear water is used for rinsing during cutting.
4. The forging method of the flange forging according to claim 1, wherein the forging method comprises the following steps: in the step four 1), the original parts of the flange forging are soaked by water before section burning.
5. The forging method of the flange forging according to claim 1, wherein the forging method comprises the following steps: and in the step five 2), cooling by using an air cooler.
6. The forging method of the flange forging according to claim 1, wherein the forging method comprises the following steps: and in the sixth step, observing and recording the surface condition of the flange forging piece every month.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403085.7A CN110918865A (en) | 2019-12-30 | 2019-12-30 | Forging method of flange forging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911403085.7A CN110918865A (en) | 2019-12-30 | 2019-12-30 | Forging method of flange forging |
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| CN110918865A true CN110918865A (en) | 2020-03-27 |
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| CN201911403085.7A Pending CN110918865A (en) | 2019-12-30 | 2019-12-30 | Forging method of flange forging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669528A (en) * | 2021-09-01 | 2021-11-19 | 扬中市旭晨精密模锻有限公司 | Flange forging and forging method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920542A (en) * | 2014-04-01 | 2014-07-16 | 中国石油化工股份有限公司 | Device for quickly opening door in chemical fire explosion safety test chamber |
| CN105689615A (en) * | 2016-02-03 | 2016-06-22 | 南昌齿轮锻造厂 | Overlapping type combined forging method |
| CN206160795U (en) * | 2016-11-04 | 2017-05-10 | 南京宝色股份公司 | Double pipe heat exchanger tube head connection structure |
-
2019
- 2019-12-30 CN CN201911403085.7A patent/CN110918865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920542A (en) * | 2014-04-01 | 2014-07-16 | 中国石油化工股份有限公司 | Device for quickly opening door in chemical fire explosion safety test chamber |
| CN105689615A (en) * | 2016-02-03 | 2016-06-22 | 南昌齿轮锻造厂 | Overlapping type combined forging method |
| CN206160795U (en) * | 2016-11-04 | 2017-05-10 | 南京宝色股份公司 | Double pipe heat exchanger tube head connection structure |
Non-Patent Citations (2)
| Title |
|---|
| 杨胜横: "法兰生产工艺", 《百度文库》 * |
| 洛阳工学院机电: "16MnⅢ级锻件热处理工艺", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669528A (en) * | 2021-09-01 | 2021-11-19 | 扬中市旭晨精密模锻有限公司 | Flange forging and forging method thereof |
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Application publication date: 20200327 |
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