CN112706004A - Method for processing die - Google Patents
Method for processing die Download PDFInfo
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- CN112706004A CN112706004A CN202011531197.3A CN202011531197A CN112706004A CN 112706004 A CN112706004 A CN 112706004A CN 202011531197 A CN202011531197 A CN 202011531197A CN 112706004 A CN112706004 A CN 112706004A
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- treatment
- mould
- temperature
- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention provides a processing method of a die, which comprises the following steps: after the surface of the die is subjected to primary treatment, carrying out heat treatment on the die, and continuously carrying out secondary surface treatment on the heat-treated die to finish primary polishing treatment on the surface of the die subjected to secondary surface treatment; cleaning the surface of the mould subjected to surface polishing for the first time to remove residues on the surface of the mould, naturally drying the mould, and nitriding the naturally dried mould for a first preset time; and cooling the nitrided mould, then performing secondary polishing treatment, and performing surface coating treatment on the mould subjected to the secondary polishing treatment. The invention solves the problems that the structure strength of the cutter type die in the prior art is insufficient and the service life of the cutter type die is shortened.
Description
Technical Field
The invention relates to the technical field of surface treatment methods, in particular to a method for processing a die.
Background
In the prior art, the cutter type die is usually directly put into use after finishing machining, in the operation process of the cutter type die, the working face of the cutter type die is easy to wear and needs an operator to frequently maintain the cutter type die, the cutter type die cannot be maintained and only can be scrapped when the damage degree is serious, namely, the service life of the existing cutter type die cannot be ensured after the cutter type die is directly put into use after finishing machining.
Disclosure of Invention
The invention mainly aims to provide a die processing method, which aims to solve the problems that the structural strength of a cutter die in the prior art is insufficient, and the service life of the cutter die is shortened.
In order to achieve the above object, the present invention provides a method for processing a mold, comprising the steps of: after the surface of the die is subjected to primary treatment, carrying out heat treatment on the die, and continuously carrying out secondary surface treatment on the heat-treated die to finish primary polishing treatment on the surface of the die subjected to secondary surface treatment; cleaning the surface of the mould subjected to surface polishing for the first time to remove residues on the surface of the mould, naturally drying the mould, and nitriding the naturally dried mould for a first preset time; and cooling the nitrided mould, then performing secondary polishing treatment, and performing surface coating treatment on the mould subjected to the secondary polishing treatment.
Further, the nitriding treatment comprises the following steps of putting the naturally air-dried mold into a vacuum nitriding furnace, filling hydrogen and argon into the vacuum nitriding furnace, stopping filling the hydrogen and the argon into the vacuum nitriding furnace when the temperature in the vacuum nitriding furnace reaches a preset heating temperature, filling nitrogen into the vacuum nitriding furnace, and keeping the nitrogen for a first preset time.
Further, the temperature in the vacuum nitriding furnace is kept at a first preset temperature when the nitriding treatment operation is performed on the mold.
Further, after the nitriding treatment operation is completed, the heating of the vacuum nitriding furnace is stopped to cool the mold along with the furnace, and the surface of the mold cooled along with the furnace is cleaned for the second time.
Further, the mould after the second cleaning operation is subjected to a second polishing treatment, wherein the second polishing treatment comprises the following steps: firstly, carrying out pre-polishing treatment on the sand paper on the die, and then carrying out polishing treatment on the sand paper by using a wool wheel after the pre-polishing treatment is finished.
Further, the surface coating treatment method comprises the following steps of putting the mould which is finished with the second polishing treatment into a containing cavity of vacuum coating equipment, arranging a TiN target material in the containing cavity, forming an ion state by the TiN target material under the action of an electric field and depositing the TiN target material on the surface of the mould so as to finish the surface coating treatment.
Further, when the surface coating treatment is carried out on the mold, the temperature in the accommodating cavity is kept at a second preset temperature.
Further, the heat treatment comprises the following steps of putting the mould subjected to surface pretreatment into a vacuum furnace, heating the temperature in the vacuum furnace to a third preset temperature and keeping the temperature for a second preset time, continuing to heat the temperature in the vacuum furnace to a fourth preset temperature and keeping the temperature for a third preset time, and continuing to heat the temperature in the vacuum furnace to a fifth preset temperature; and reducing the temperature in the vacuum furnace to a sixth preset temperature and tempering.
Further, the sixth preset temperature is T, wherein T is more than or equal to 520 ℃ and less than or equal to 530 ℃.
Further, the processing method of the die further comprises the following step of polishing the working surface of the die after the surface coating treatment of the die is finished.
By applying the technical scheme of the invention, the processing method of the die is provided, and the die is ensured to have enough structural strength, so that the service life of the die is prolonged.
Specifically, the surface of the mould after surface polishing treatment is cleaned, so that residues on the surface of the mould are removed, then the mould is naturally air-dried, and the naturally air-dried mould is subjected to nitriding treatment and kept for a first preset time; the secondary surface polishing treatment is carried out on the nitrided mould after cooling, and the surface coating treatment is carried out on the mould which is subjected to the secondary surface polishing treatment, so that the structural strength of the mould is greatly improved through the coating treatment on the surface of the mould, and particularly the working surface of the mould has enough strength, so that the service life of the mould is ensured, and the frequent maintenance of the mould is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic flow diagram of a method of machining a mold according to an alternative embodiment of the 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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 invention provides a processing method of a die, aiming at solving the problems that the structural strength of a cutter die in the prior art is insufficient and the service life of the cutter die is shortened.
As shown in fig. 1, the processing method of the mold includes the following steps of performing a first treatment on the surface of the mold, then performing a heat treatment on the mold, and continuing to perform a second surface treatment on the mold after the heat treatment, thereby performing a first polishing treatment on the surface of the mold after the second surface treatment; cleaning the surface of the mould subjected to surface polishing for the first time to remove residues on the surface of the mould, naturally drying the mould, and nitriding the naturally dried mould for a first preset time; and cooling the nitrided mould, then performing secondary polishing treatment, and performing surface coating treatment on the mould subjected to the secondary polishing treatment.
The application provides a processing method of a die, which ensures that the die has enough structural strength, thereby prolonging the service life of the die.
Specifically, the surface of the mould after surface polishing treatment is cleaned, so that residues on the surface of the mould are removed, then the mould is naturally air-dried, and the naturally air-dried mould is subjected to nitriding treatment and kept for a first preset time; the secondary surface polishing treatment is carried out on the nitrided mould after cooling, and the surface coating treatment is carried out on the mould which is subjected to the secondary surface polishing treatment, so that the structural strength of the mould is greatly improved through the coating treatment on the surface of the mould, and particularly the working surface of the mould has enough strength, so that the service life of the mould is ensured, and the frequent maintenance of the mould is avoided.
Optionally, ultrasonic cleaning is adopted for the first cleaning, so that the efficiency is high and the cleaning is thorough; the first polishing treatment comprises polishing with 200-mesh sand paper, polishing with 400-mesh sand paper, and polishing with a wool wheel; the second polishing treatment comprises polishing with 800 mesh sand paper, polishing with 1000 mesh sand paper, and polishing with wool wheel.
It should be noted that, in the present application, the nitriding process includes the following steps of placing the naturally air-dried mold into a vacuum nitriding furnace, filling hydrogen and argon into the vacuum nitriding furnace, stopping filling hydrogen and argon into the vacuum nitriding furnace when the temperature in the vacuum nitriding furnace reaches a preset heating temperature, filling nitrogen into the vacuum nitriding furnace, and maintaining for a first preset time.
It should be noted that, in the present application, the first preset time is 48 hours, and hydrogen and argon are continuously filled into the vacuum nitriding furnace when the vacuum nitriding furnace starts to be heated, the hydrogen and argon are stopped being filled into the vacuum nitriding furnace until the temperature in the vacuum nitriding furnace reaches about 500 ℃, nitrogen is started to be filled into the vacuum nitriding furnace, and nitrogen is continuously filled into the whole nitriding process.
In the present application, the temperature in the vacuum nitriding furnace is maintained at the first predetermined temperature during the nitriding operation of the mold. Thus, the nitriding reliability of the mold is ensured.
Optionally, the first preset temperature is about 500 ℃.
In the present application, after the nitriding treatment operation is completed, the heating of the vacuum nitriding furnace is stopped to cool the mold along with the furnace, and the surface of the mold cooled along with the furnace is cleaned for the second time. Therefore, the surface of the die can be kept clean every time the die finishes the process, and the influence of the residues on the surface of the die on the subsequent process treatment is avoided.
Alternatively, the second cleaning may also use ultrasonic cleaning.
In the present application, the second polishing process is performed on the mold after the second cleaning operation, and the second polishing process includes the steps of performing a pre-polishing process on the mold with sand paper, and performing a polishing process with a wool wheel after the pre-polishing process is completed. Thus, the surface smoothness of the surface of the die after the second polishing treatment is ensured to be within 0.4 μm, so that the subsequent film coating operation can be normally carried out.
It should be noted that, in the present application, the surface coating treatment method includes the following steps of placing the mold which has completed the second polishing treatment into a containing cavity of the vacuum coating equipment, and arranging a TiN target material in the containing cavity, wherein the TiN target material forms an ion state under the action of an electric field and is deposited on the surface of the mold, so as to complete the surface coating treatment. Thus, the surface of the mold is subjected to deposition of a hard nitride film.
In the present application, the TiN target refers to a titanium nitride target.
Optionally, the adopted coating mode is PVD surface coating, and when the surface coating treatment is performed on the mold, the temperature in the accommodating chamber is kept at a second preset temperature.
Preferably, the second predetermined temperature is around +350 ℃ in vacuum. Thus, under the condition of vacuum about +350 ℃, the TiN target material is evaporated (or scattered) into an ionic state by adopting low-voltage large-current arc discharge, and is precipitated on the surface of the mould under the action of an electric field, so that the surface of the mould has higher hardness, and the surface of the mould has the characteristics of wear resistance and high temperature resistance.
It should be noted that, in the present application, the heat treatment includes the following steps: placing the mould subjected to surface pretreatment into a vacuum furnace, heating the temperature in the vacuum furnace to a third preset temperature and keeping the temperature for a second preset time, continuing to heat the temperature in the vacuum furnace to a fourth preset temperature and keeping the temperature for a third preset time, and continuing to heat the temperature in the vacuum furnace to a fifth preset temperature; and reducing the temperature in the vacuum furnace to a sixth preset temperature and tempering.
It should be noted that, in the present application, the third preset temperature is 550 ℃, the second preset time is 30 minutes, the fourth preset temperature is 850 ℃, the third preset time is 60 minutes, and the fifth preset temperature is 1080 ℃.
Optionally, the blank material for processing into the die is a CR12mov material, the CR12mov material is firstly roughly turned on a lathe with model number 6180, after rough turning is finished, semi-finish turning is carried out on a numerically controlled lathe 80135D, after semi-finish turning is finished, heat treatment is carried out, a vacuum high-quenching high-recovery process is required in the heat treatment process, in the process, the raw material of the die steel is firstly heated to 550 ℃ in a vacuum environment and is subjected to heat preservation for 30 minutes, then heated to 850 ℃ and is subjected to heat preservation for 60 minutes, the quenching temperature is continuously heated to 1080 ℃, the tempering temperature is 520-fold and the tempering temperature is 530 ℃ for three times, and the hardness is about 55. And after quenching, finely turning on a numerically controlled lathe 80135D, and then performing first polishing treatment, wherein the first polishing treatment comprises polishing with 200-mesh sand paper, then polishing with 400-mesh sand paper, and finally polishing with a wool wheel.
Optionally, the sixth preset temperature is T, wherein T is more than or equal to 520 ℃ and less than or equal to 530 ℃.
In the present application, three times of tempering are required, and the tempering temperature is in the range of 520 ℃ to 530 ℃.
It should be noted that, in the present application, the processing method of the die is suitable for the die of the knife edge type, the die of the knife edge type means that the die has a central through hole, the workpiece is placed on the die, the punching end of the punching machine punches off the part of the workpiece opposite to the central through hole, the die of the knife edge type needs to be polished again after finishing the surface coating treatment, 600-mesh sand paper is used for polishing the working surface of the die, and polishing is performed from inside to outside and from bottom to top at the knife edge position of the die of the knife edge type, and a first angle a needs to be formed between the knife edge polishing and the vertical direction, wherein a is greater than or equal to 0 degree and less than or equal to 2 degrees, and preferably, the first angle a is 1 degree.
Certainly, the processing method of the mold is also suitable for flaring type molds, two workpieces with semicircular notches are oppositely arranged to form a through hole in a surrounding mode, the flaring type mold is provided with a flaring end, the flaring end stretches into the through hole to perform flaring operation on the axial end of the through hole, so that the diameter of the port of the axial end of the through hole is gradually increased, the flaring type mold can be directly put into use after being discharged from a furnace after surface coating treatment is completed, and polishing operation is not needed.
In the present application, the life of the flaring die processed by the above processing method is improved by 80 times compared with the life of the flaring die without coating, and similarly, the life of the knife edge die processed by the above processing method is improved by 20 times compared with the life of the knife edge die without coating.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (10)
1. A processing method of a mold is characterized by comprising the following steps:
after the surface of the die is subjected to primary treatment, carrying out heat treatment on the die, and continuously carrying out secondary surface treatment on the heat-treated die to finish primary polishing treatment on the surface of the die after the secondary surface treatment;
cleaning the surface of the mould subjected to surface polishing for the first time to remove residues on the surface of the mould, naturally drying the mould, and nitriding the naturally dried mould for a first preset time;
and cooling the nitrided mould, then carrying out secondary polishing treatment, and carrying out surface coating treatment on the mould subjected to the secondary polishing treatment.
2. The machining method according to claim 1, characterized in that the nitriding treatment comprises the steps of:
and putting the naturally air-dried mold into a vacuum nitriding furnace, filling hydrogen and argon into the vacuum nitriding furnace, stopping filling the hydrogen and the argon into the vacuum nitriding furnace when the temperature in the vacuum nitriding furnace reaches a preset heating temperature, filling nitrogen into the vacuum nitriding furnace, and keeping the first preset time.
3. The processing method according to claim 2, wherein a temperature in the vacuum nitriding furnace is maintained at a first predetermined temperature during the nitriding operation of the mold.
4. The processing method according to claim 3, wherein after completion of the nitriding treatment, heating of the vacuum nitriding furnace is stopped to cool the mold in the furnace, and the surface of the mold cooled in the furnace is subjected to secondary cleaning.
5. The process of claim 4 wherein said mold after completion of said second cleaning operation is subjected to said second polishing treatment, said second polishing treatment comprising the steps of:
firstly, carrying out pre-polishing treatment on the sand paper on the mould, and then carrying out polishing treatment on the sand paper by using a wool wheel after the pre-polishing treatment is finished.
6. The processing method according to claim 1, wherein the surface coating treatment method comprises the steps of:
and putting the mould which finishes the second polishing treatment into a containing cavity of vacuum coating equipment, wherein a TiN target material is arranged in the containing cavity, and the TiN target material forms an ion state under the action of an electric field and is deposited on the surface of the mould so as to finish the surface coating treatment.
7. The process according to claim 6, wherein the temperature inside the containing chamber is maintained at a second predetermined temperature during the surface coating treatment of the mold.
8. The machining method according to claim 1, characterized in that said heat treatment comprises the following steps:
placing the mold subjected to surface pretreatment into a vacuum furnace, heating the temperature in the vacuum furnace to a third preset temperature and keeping the temperature for a second preset time, continuing to heat the temperature in the vacuum furnace to a fourth preset temperature and keeping the temperature for a third preset time, and continuing to heat the temperature in the vacuum furnace to a fifth preset temperature; and reducing the temperature in the vacuum furnace to a sixth preset temperature and tempering.
9. The process of claim 8, wherein the sixth predetermined temperature is T, wherein T is 520 ℃ to 530 ℃.
10. The method of claim 1, wherein the method of forming the mold further comprises the steps of:
and after the surface coating treatment of the die is finished, polishing the working surface of the die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531197.3A CN112706004A (en) | 2020-12-22 | 2020-12-22 | Method for processing die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531197.3A CN112706004A (en) | 2020-12-22 | 2020-12-22 | Method for processing die |
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| CN112706004A true CN112706004A (en) | 2021-04-27 |
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| CN202011531197.3A Pending CN112706004A (en) | 2020-12-22 | 2020-12-22 | Method for processing die |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114921620A (en) * | 2022-05-24 | 2022-08-19 | 武汉联塑精密模具有限公司 | Processing technology of extrusion die |
| CN116985019A (en) * | 2023-08-15 | 2023-11-03 | 宁波锦辉光学科技有限公司 | Processing method of special-shaped irregular optical surface die |
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|---|---|---|---|---|
| CN114921620A (en) * | 2022-05-24 | 2022-08-19 | 武汉联塑精密模具有限公司 | Processing technology of extrusion die |
| CN114921620B (en) * | 2022-05-24 | 2023-08-08 | 武汉联塑精密模具有限公司 | Processing technology of extrusion die |
| CN116985019A (en) * | 2023-08-15 | 2023-11-03 | 宁波锦辉光学科技有限公司 | Processing method of special-shaped irregular optical surface die |
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