CN114888218A - Method for removing hot oxide skin of forge piece - Google Patents
Method for removing hot oxide skin of forge piece Download PDFInfo
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- CN114888218A CN114888218A CN202210537678.8A CN202210537678A CN114888218A CN 114888218 A CN114888218 A CN 114888218A CN 202210537678 A CN202210537678 A CN 202210537678A CN 114888218 A CN114888218 A CN 114888218A
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- forging
- die
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- hot
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005242 forging Methods 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 230000008961 swelling Effects 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 239000003721 gunpowder Substances 0.000 claims description 8
- 239000002360 explosive Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 235000011187 glycerol Nutrition 0.000 claims description 4
- SNIOPGDIGTZGOP-UHFFFAOYSA-N Nitroglycerin Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000006 Nitroglycerin Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 3
- XQNIYBBHBZAQEC-UHFFFAOYSA-N diphosphorus trisulphide Chemical group S=PSP=S XQNIYBBHBZAQEC-UHFFFAOYSA-N 0.000 claims description 3
- 229960003711 glyceryl trinitrate Drugs 0.000 claims description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000001007 puffing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003670 easy-to-clean Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention belongs to the technical field of forging and pressing processing, and particularly relates to a method for removing hot oxide skin of a forging. According to the invention, through six steps of spraying the swelling material on the forging die, positioning the forging piece, pressing down the forging machine, resetting the forging machine, demoulding the forging piece and clearing the die, oxide skin is removed during forging, and the production process is saved. According to the invention, through the impact airflow generated by heating and pressing the puffed material, the thermal oxidation skin on the surface of the forging is effectively removed, the surface quality of the forging is effectively improved, the subsequent machining amount is reduced, and raw materials are effectively saved. The airflow generated after the puffing of the puffed material is also beneficial to the demoulding of the forging.
Description
Technical Field
The invention belongs to the technical field of forging and pressing processing, and particularly relates to a method for removing hot oxide skin of a forging.
Background
During hot forging, because surface metal and oxygen are oxidized, if the generated oxide skin cannot be cleaned in time during forging forming, the oxide skin can be pressed into the forge piece, so that pits are generated on the surface of the forge piece, the use performance of the forge piece is influenced, and the machining treatment needs to be carried out on the surface of the forge piece at a later stage.
At present, the processing mode of the hot oxide skin is to slightly press down the forged piece before forging to crush and clean the oxide skin on the surface layer, the production process required by the processing mode is complex, the production rhythm is slow, and a large amount of waste of raw materials can be caused. The treatment mode of the hot oxide skin on the surface of the forging cannot meet the current market competition requirements, and cannot be applied to the forging with small volume.
Disclosure of Invention
The invention provides a method for removing hot oxide skin of a forging, and aims to reduce or eliminate pocks after the forging is formed, realize the effects of energy conservation and material conservation and improve the production efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for removing hot scale of a forging comprises the following steps,
the method comprises the following steps: spraying swelling materials on the forging die;
step two: positioning a forged piece;
step three: pressing down by a forging machine;
step four: resetting the forging machine;
step five: demolding the forged piece;
step six: and (6) cleaning the die.
The puffed material in the first step adopts low-intensity gunpowder, low-intensity explosive or volatile polymer.
The low-intensity gunpowder is prepared from sulfur, saltpeter and charcoal according to the mass ratio of 2:2: 6.
The glycerin explosive is formed by mixing nitroglycerin and diatomite according to the mass ratio of 3: 1.
The volatile polymer is phosphorus trisulfide.
And the pressing speed of the forging machine in the third step is 9-24 m/s.
The forging die in the first step and the fifth step is made of hot die steel.
And the concrete method for cleaning the die in the sixth step is to clean the forging die by adopting high-pressure gas.
The pressure of the high-pressure gas is 0.4-0.6 MPa.
Has the advantages that:
(1) according to the invention, through six steps of spraying the swelling material on the forging die, positioning the forging piece, pressing down the forging machine, resetting the forging machine, demoulding the forging piece and clearing the die, oxide skin is removed during forging, and the production process is saved.
(2) According to the invention, through the impact airflow generated by heating and pressing the puffed material, the thermal oxidation skin on the surface of the forging is effectively removed, the surface quality of the forging is effectively improved, the subsequent machining amount is reduced, and raw materials are effectively saved.
(3) The invention adopts a method of spraying the puffed material in the forging die, and the airflow generated after the puffed material is puffed is beneficial to the demoulding of the forging piece.
The foregoing is merely an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following is a detailed description of preferred embodiments of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of the present invention.
FIG. 2 is a schematic diagram of the mechanism of the present invention.
In the figure:
1-forging; 2-puff explosion airflow; 3-oxide scale.
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clear and clear, and to implement them in accordance with the content of the description, the following is a detailed description of preferred embodiments of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
The first embodiment is as follows:
referring to fig. 1 and 2, a method for removing the hot scale of a forging comprises the following steps,
the method comprises the following steps: spraying swelling materials on the forging die;
step two: positioning a forged piece;
step three: pressing down by a forging machine;
step four: resetting the forging machine;
step five: demolding the forged piece;
step six: and (6) cleaning the die.
When in actual use, firstly, a layer of expanded material which can be expanded after being heated and pressed is paved on a forging die; then, quickly and accurately positioning the heated blank on the corresponding position of a forging die sprayed with a swelling material; then, the press is pressed down rapidly, and the expanded material in the forging die expands after being heated and pressed to form corresponding airflow to impact the surface oxide of the forging piece so as to crush the surface oxide; and then, the press is quickly reset, the forge piece is taken out of the forging die, and then the forging die is cleaned to prepare for the next forging.
According to the invention, through six steps of spraying the swelling material on the forging die, positioning the forging piece, pressing down the forging machine, resetting the forging machine, demoulding the forging piece and clearing the die, oxide skin is removed during forging, and the production process is saved.
According to the invention, through the impact airflow generated by heating and pressing the puffed material, the thermal oxidation skin on the surface of the forging is effectively removed, the surface quality of the forging is effectively improved, the subsequent machining amount is reduced, and raw materials are effectively saved.
The invention adopts a method of spraying the puffed material in the forging die, and the airflow generated after the puffed material is puffed is beneficial to the demoulding of the forging piece.
In order to ensure good effects of forging and removing hot oxide skin of the forged piece, the periphery of the press machine is closed and is provided with corresponding dust removal equipment.
Example two:
referring to a method for removing the hot scale of the forging shown in fig. 1, on the basis of the first embodiment, the puffed material in the first step is low-intensity gunpowder, low-intensity explosive or volatile polymer.
When in actual use, the puffed material adopts the technical scheme, the used amount is less, the die is easy to clean, and the service life of the die is effectively prolonged.
Example three:
referring to the method for removing the hot scale of the forging shown in the figure 1, on the basis of the second embodiment, the low-intensity gunpowder is prepared by preparing sulfur, saltpeter and charcoal according to the mass ratio of 2:2: 6.
When in actual use, the technical scheme is adopted by the low-intensity gunpowder, so that the use cost is low, no harmful gas is generated during use, and the impact force on the die is small.
Example four:
referring to the method for removing the hot scale of the forging shown in FIG. 1, on the basis of the second embodiment, the glycerin explosive is formed by mixing nitroglycerin and diatomite according to the mass ratio of 3: 1.
When in actual use, the explosive with low intensity adopts the technical scheme, so that the use cost is low, and the impact force on the die is small.
Example five:
referring to a method for removing the hot scale of the forging shown in FIG. 1, on the basis of the second embodiment, the volatile polymer is specifically phosphorus trisulfide.
When in actual use, the volatile polymer adopts the technical scheme, the quantity needed in use is less, the die is easy to clean, and the service life of the die is effectively prolonged.
Example six:
referring to the method for removing the hot scale of the forging piece shown in the figure 1, on the basis of the first embodiment, the forging machine in the third step adopts a pressing rate of 9-24 m/s.
In practical use, the forging machine is pressed down at a high speed, high temperature and high pressure can be realized at a high speed by adopting the technical scheme, and gunpowder and puffed materials can play a role easily.
Example seven:
referring to a method for removing the hot scale of the forging piece shown in FIG. 1, on the basis of the first embodiment, the forging die in the first step and the fifth step is made of hot die steel.
When in actual use, the forging die adopts the technical scheme, so that the forging die can bear certain alternating stress, and the processes of forging and pressing and removing the hot oxide skin of the forge piece are ensured to be smoothly carried out.
Example eight:
referring to a method for removing the hot scale of the forging piece shown in fig. 1, on the basis of the first embodiment, the specific method for cleaning the die in the sixth step is to clean the forging die by using high-pressure gas.
When in actual use, the forging die is cleaned by high-pressure gas, so that the forging die is convenient to use, low in cost and good in die cleaning effect.
The high pressure gas used in this embodiment may be provided by a corresponding gas compression station.
Example nine:
referring to a method for removing the hot scale of the forging shown in FIG. 1, on the basis of the first embodiment, the pressure of the high-pressure gas is 0.4-0.6 MPa.
When in actual use, the pressure of the gas adopts the technical scheme, so that the cleaning effect can be ensured, and the forging die cannot be damaged. When cleaning, if the gas pressure is too large, the safety production is not facilitated, and the gas pressure is too small, the die cannot be cleaned effectively. The selection of the pressure of the gas can be actually carried out according to the operation in specific application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (9)
1. A method for removing the hot scale of a forging is characterized by comprising the following steps,
the method comprises the following steps: spraying swelling materials on the forging die;
step two: positioning a forged piece;
step three: pressing down by a forging machine;
step four: resetting the forging machine;
step five: demolding the forged piece;
step six: and (6) cleaning the die.
2. The method for removing the hot scale of the forging according to claim 1, wherein the method comprises the following steps: the puffed material in the first step is low-intensity gunpowder, glycerin explosive or volatile polymer.
3. The method for removing the hot scale of the forging as set forth in claim 2, wherein: the low-intensity gunpowder is prepared from sulfur, saltpeter and charcoal according to the mass ratio of 2:2: 6.
4. The method for removing the hot scale of the forging as set forth in claim 2, wherein: the glycerin explosive is formed by mixing nitroglycerin and diatomite according to the mass ratio of 3: 1.
5. The method for removing the hot scale of the forging as set forth in claim 2, wherein: the volatile polymer is phosphorus trisulfide.
6. The method for removing the hot scale of the forging according to claim 1, wherein the method comprises the following steps: and the pressing speed of the forging machine in the third step is 9-24 m/s.
7. The method for removing the hot scale of the forging according to claim 1, wherein the method comprises the following steps: the forging die in the first step and the fifth step is made of hot die steel.
8. The method for removing the hot scale of the forging according to claim 1, wherein the method comprises the following steps: and the concrete method for cleaning the die in the sixth step is to clean the forging die by adopting high-pressure gas.
9. The method for removing the hot scale of the forging according to claim 8, wherein the method comprises the following steps: the pressure of the high-pressure gas is 0.4-0.6 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210537678.8A CN114888218A (en) | 2022-05-17 | 2022-05-17 | Method for removing hot oxide skin of forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210537678.8A CN114888218A (en) | 2022-05-17 | 2022-05-17 | Method for removing hot oxide skin of forge piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114888218A true CN114888218A (en) | 2022-08-12 |
Family
ID=82724853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210537678.8A Pending CN114888218A (en) | 2022-05-17 | 2022-05-17 | Method for removing hot oxide skin of forge piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN114888218A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089702A (en) * | 1974-12-20 | 1978-05-16 | Nitro Nobel Ab | Method of cleaning internal surfaces employing an explosive gas |
| JPH11297653A (en) * | 1998-02-13 | 1999-10-29 | Sumitomo Heavy Ind Ltd | Surface cleaning method and apparatus |
| CN103624206A (en) * | 2013-12-09 | 2014-03-12 | 无锡透平叶片有限公司 | Method for removing oxide scales from surface of stainless steel blade forge piece |
| RU2012143925A (en) * | 2012-10-15 | 2014-04-20 | Открытое акционерное общество "Научно-производственное объединение по исследованию и проектированию энергетического оборудования им. И.И. Ползунова" (ОАО "НПО ЦКТИ") | METHOD FOR CLEANING SURFACES OF ENERGY TECHNOLOGICAL EQUIPMENT |
| CN106807694A (en) * | 2015-11-30 | 2017-06-09 | 广汉市川西机电备件有限责任公司 | A kind of seamless steel pipe surface scale minimizing technology |
| CN113305252A (en) * | 2021-06-25 | 2021-08-27 | 绍兴市蓝也机械有限公司 | Forging and pressing processing equipment for casting parts and processing technology thereof |
| CN113547059A (en) * | 2021-06-30 | 2021-10-26 | 周正行 | Forging die of forging |
| CN214814490U (en) * | 2021-06-02 | 2021-11-23 | 江苏永炬锻造有限公司 | Auxiliary device for forging processing |
| CN114042696A (en) * | 2021-09-24 | 2022-02-15 | 易伟 | Process for removing oxide skin on surface of forge piece |
| CN114130940A (en) * | 2021-10-14 | 2022-03-04 | 戴颖航 | Forging and pressing strengthening process for rare earth magnesium alloy workpiece |
-
2022
- 2022-05-17 CN CN202210537678.8A patent/CN114888218A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089702A (en) * | 1974-12-20 | 1978-05-16 | Nitro Nobel Ab | Method of cleaning internal surfaces employing an explosive gas |
| JPH11297653A (en) * | 1998-02-13 | 1999-10-29 | Sumitomo Heavy Ind Ltd | Surface cleaning method and apparatus |
| RU2012143925A (en) * | 2012-10-15 | 2014-04-20 | Открытое акционерное общество "Научно-производственное объединение по исследованию и проектированию энергетического оборудования им. И.И. Ползунова" (ОАО "НПО ЦКТИ") | METHOD FOR CLEANING SURFACES OF ENERGY TECHNOLOGICAL EQUIPMENT |
| CN103624206A (en) * | 2013-12-09 | 2014-03-12 | 无锡透平叶片有限公司 | Method for removing oxide scales from surface of stainless steel blade forge piece |
| CN106807694A (en) * | 2015-11-30 | 2017-06-09 | 广汉市川西机电备件有限责任公司 | A kind of seamless steel pipe surface scale minimizing technology |
| CN214814490U (en) * | 2021-06-02 | 2021-11-23 | 江苏永炬锻造有限公司 | Auxiliary device for forging processing |
| CN113305252A (en) * | 2021-06-25 | 2021-08-27 | 绍兴市蓝也机械有限公司 | Forging and pressing processing equipment for casting parts and processing technology thereof |
| CN113547059A (en) * | 2021-06-30 | 2021-10-26 | 周正行 | Forging die of forging |
| CN114042696A (en) * | 2021-09-24 | 2022-02-15 | 易伟 | Process for removing oxide skin on surface of forge piece |
| CN114130940A (en) * | 2021-10-14 | 2022-03-04 | 戴颖航 | Forging and pressing strengthening process for rare earth magnesium alloy workpiece |
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