CN113265598B - Manufacturing method of spiral gear applied to automobile skylight motor - Google Patents
Manufacturing method of spiral gear applied to automobile skylight motor Download PDFInfo
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- CN113265598B CN113265598B CN202110584907.7A CN202110584907A CN113265598B CN 113265598 B CN113265598 B CN 113265598B CN 202110584907 A CN202110584907 A CN 202110584907A CN 113265598 B CN113265598 B CN 113265598B
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- smelting
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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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
- C22C38/18—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to the technical field of spiral gear manufacturing, in particular to a manufacturing method of a spiral gear for an automobile skylight motor, which aims at the problems that the traditional spiral gear is manufactured by adopting a lathe cutting or thread rolling technology, the manufacturing mode is complex, the hardness is poor and the service life is short, and the invention provides the following scheme, which comprises the following manufacturing methods: s1: preparing raw materials and preparing; s2: introducing raw materials into a smelting furnace for smelting; s3: smelting detection and regulation; s4: introducing into a mold for molding; s5: annealing and demoulding; s6: detecting performance; s7: and (5) grinding and polishing. The spiral gear is made of a plurality of metal materials in a mixing way, so that the hardness and toughness of the spiral gear are improved, and the service life of the spiral gear is prolonged; the method adopts a fusion casting integrated forming mode for processing and manufacturing, and has simple manufacturing mode and convenient operation; oxygen is isolated during casting, oxidation is avoided, and the processing quality of the manufacture is improved.
Description
Technical Field
The invention relates to the technical field of spiral gear manufacturing, in particular to a manufacturing method of a spiral gear applied to an automobile skylight motor.
Background
In order to improve the comfort of automobile use, the tops of many automobiles are provided with skylights, and the skylights are opened through motor driving, and the motor driving uses a spiral gear as a transmission mechanism.
The traditional spiral gear is manufactured by adopting the technology of lathe cutting or thread rolling, and the manufacturing mode is complex, has poor hardness and has short service life.
Disclosure of Invention
The invention aims to solve the defects that the traditional spiral gear is manufactured by adopting the technology of lathe cutting or thread rolling, the manufacturing mode is complex, the hardness is poor and the service life is short, and provides a manufacturing method of the spiral gear applied to an automobile skylight motor.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a manufacturing method of a spiral gear for an automobile sunroof motor, comprising the following manufacturing methods:
s1: preparing raw materials and preparing;
s2: introducing raw materials into a smelting furnace for smelting;
s3: smelting detection and regulation;
s4: introducing into a mold for molding;
s5: annealing and demoulding;
s6: detecting performance;
s7: and (5) grinding and polishing.
Preferably, the preparing of the raw materials in S1 includes the following steps:
firstly, preparing 93% -94% of iron powder, 1.3% -1.7% of copper powder, 1.4% -1.9% of nickel powder, 0.3% -0.6% of molybdenum powder, 0.6% -1.2% of chromium powder, 0.5% -1% of carbon powder and 0.3% -0.7% of rare earth element;
secondly, the raw materials are put into a mixer and mixed for 30-40min at the temperature of 60-85 ℃ to obtain the mixture.
Preferably, in the step S2, the mixture is introduced into a smelting furnace for smelting, and the smelting includes the following steps:
firstly, heating a smelting furnace to 80-100 ℃ and introducing a mixture;
secondly, introducing nitrogen into the smelting furnace, and extruding and discharging all oxygen in the smelting furnace;
thirdly, setting a mixing rod, and stirring continuously at the speed of 80 r/min;
fourthly, heating the internal temperature of the smelting furnace to 500-600 ℃ for 1h;
fifthly, smelting at high temperature for 1-1.5h.
Preferably, in the step S3, the temperature inside the smelting furnace is monitored by using a temperature detector, the oxygen content in the smelting furnace is detected by using an oxygen detecting instrument at any time, the nitrogen content is 3-4 g/cm < 3 >, if the oxygen in the smelting furnace exceeds the standard, the nitrogen supply pump works to supply air into the smelting furnace, the oxygen in the smelting furnace is extruded and discharged, and the working flow of the nitrogen supply pump is 3-4 cm < 3 >/S.
Preferably, in the step S3, after the high-temperature smelting is completed, gradually cooling is performed, the temperature is reduced to 300-350 ℃, and the cooling time is 30-40min.
Preferably, the S4 mold comprises an upper mold and a lower mold, and the upper mold and the lower mold are preheated at 260-300 ℃; then, the upper die and the lower die are combined and then flushed by nitrogen; and finally, introducing the smelting liquid into a mould for shaping.
Preferably, in the step S5, the surface of the mold is blown and cooled, so that the temperature is reduced to 40-45 ℃ and the cooling time is 10-20min, and after cooling is completed, the mold is opened to obtain the spiral gear.
Preferably, in S6, performance of the helical gear is detected, and the detection includes hardness and quality detection.
Preferably, in the step S7, the corners of the helical gear are polished and then polished.
Compared with the prior art, the invention has the advantages that:
the spiral gear is made of a plurality of metal materials in a mixing way, so that the hardness and toughness of the spiral gear are improved, and the service life of the spiral gear is prolonged; the method adopts a fusion casting integrated forming mode for processing and manufacturing, and has simple manufacturing mode and convenient operation; oxygen is isolated during casting, oxidation is avoided, and the processing quality of the manufacture is improved.
Drawings
Fig. 1 is a flowchart of a manufacturing method of a helical gear for an automobile sunroof motor according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1, a manufacturing method of a helical gear applied to a sunroof motor of an automobile includes the following manufacturing methods:
s1: preparing raw materials and preparing;
s2: introducing raw materials into a smelting furnace for smelting;
s3: smelting detection and regulation;
s4: introducing into a mold for molding;
s5: annealing and demoulding;
s6: detecting performance;
s7: and (5) grinding and polishing.
In this example, the raw materials were prepared and the preparation included the following steps in S1:
firstly, preparing 94% of iron powder, 1.7% of copper powder, 1.4% of nickel powder, 0.3% of molybdenum powder, 1.0% of chromium powder, 1% of carbon powder and 0.6% of rare earth elements;
secondly, the raw materials are put into a mixer and mixed for 30min at 60 ℃ to obtain a mixture.
In this embodiment, in S2, the mixture is introduced into a smelting furnace for smelting, and the smelting includes the following steps:
firstly, heating a smelting furnace to 80 ℃ and introducing a mixture;
secondly, introducing nitrogen into the smelting furnace, and extruding and discharging all oxygen in the smelting furnace;
thirdly, setting a mixing rod, and stirring continuously at the speed of 80 r/min;
fourthly, heating the internal temperature of the smelting furnace to 550 ℃ for 1h;
fifthly, smelting at a high temperature for 1h.
In the embodiment, in the step S3, the temperature inside the smelting furnace is monitored by using a temperature detector, the oxygen content in the smelting furnace is detected by using an oxygen detecting instrument at any time, the nitrogen content is 3-4 g/cm < 3 >, if the oxygen in the smelting furnace exceeds the standard, the nitrogen supply pump works to supply air into the smelting furnace, the oxygen in the smelting furnace is extruded and discharged, and the working flow of the nitrogen supply pump is 3-4 cm < 3 >/S.
In the embodiment, after the high-temperature smelting is completed in step S3, the temperature is gradually reduced, and the temperature is reduced to 300 ℃ for 30min.
In the embodiment, the S4 mold comprises an upper mold and a lower mold, and firstly, the upper mold and the lower mold are preheated, and the preheating temperature is controlled at 260 ℃; then, the upper die and the lower die are combined and then flushed by nitrogen; and finally, introducing the smelting liquid into a mould for shaping.
In the embodiment, in S5, the surface of the mold is blown and cooled, so that the temperature is reduced to 40 ℃, the cooling time is 10-20min, and after cooling is completed, the mold is opened, and the spiral gear is obtained.
In this embodiment, the performance of the helical gear is detected in S6, and the detection includes hardness and quality detection.
In this embodiment, the corners of the helical gear are polished in S7, and then polished.
Example two
Referring to fig. 1, a manufacturing method of a helical gear applied to a sunroof motor of an automobile includes the following manufacturing methods:
s1: preparing raw materials and preparing;
s2: introducing raw materials into a smelting furnace for smelting;
s3: smelting detection and regulation;
s4: introducing into a mold for molding;
s5: annealing and demoulding;
s6: detecting performance;
s7: and (5) grinding and polishing.
In this example, the raw materials were prepared and the preparation included the following steps in S1:
firstly, preparing 93.4% of iron powder, 1.7% of copper powder, 1.9% of nickel powder, 0.6% of molybdenum powder, 1.2% of chromium powder, 0.5% of carbon powder and 0.7% of rare earth elements;
secondly, the raw materials are put into a mixer and mixed for 40min at the temperature of 85 ℃ to obtain the mixture.
In this embodiment, in S2, the mixture is introduced into a smelting furnace for smelting, and the smelting includes the following steps:
firstly, heating a smelting furnace to 100 ℃ and introducing a mixture;
secondly, introducing nitrogen into the smelting furnace, and extruding and discharging all oxygen in the smelting furnace;
thirdly, setting a mixing rod, and stirring continuously at the speed of 80 r/min;
fourthly, heating the internal temperature of the smelting furnace to 600 ℃ for 1h;
fifthly, smelting at high temperature for 1-1.5h.
In the embodiment, in the step S3, the temperature inside the smelting furnace is monitored by using a temperature detector, the oxygen content in the smelting furnace is detected by using an oxygen detecting instrument at any time, the nitrogen content is 3-4 g/cm < 3 >, if the oxygen in the smelting furnace exceeds the standard, the nitrogen supply pump works to supply air into the smelting furnace, the oxygen in the smelting furnace is extruded and discharged, and the working flow of the nitrogen supply pump is 3-4 cm < 3 >/S.
In the embodiment, after the high-temperature smelting is completed in step S3, the temperature is gradually reduced, and the temperature is reduced to 350 ℃ for 40min.
In the embodiment, the S4 mold comprises an upper mold and a lower mold, and firstly, the upper mold and the lower mold are preheated, and the preheating temperature is controlled to be 300 ℃; then, the upper die and the lower die are combined and then flushed by nitrogen; and finally, introducing the smelting liquid into a mould for shaping.
In the embodiment, in S5, the surface of the mold is blown and cooled, so that the temperature is reduced to 45 ℃, the cooling time is 10-20min, and after cooling is completed, the mold is opened, and the spiral gear is obtained.
In this embodiment, the performance of the helical gear is detected in S6, and the detection includes hardness and quality detection.
In this embodiment, the corners of the helical gear are polished in S7, and then polished.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The manufacturing method of the spiral gear for the automobile skylight motor is characterized by comprising the following steps of:
s1: preparing raw materials and preparing;
s2: introducing raw materials into a smelting furnace for smelting;
s3: smelting detection and regulation;
s4: introducing into a mold for molding;
s5: annealing and demoulding;
s6: detecting performance;
s7: polishing;
the preparation of raw materials in S1 comprises the following steps:
firstly, preparing 93% -94% of iron powder, 1.3% -1.7% of copper powder, 1.4% -1.9% of nickel powder, 0.3% -0.6% of molybdenum powder, 0.6% -1.2% of chromium powder, 0.5% -1% of carbon powder and 0.3% -0.7% of rare earth element;
secondly, putting the raw materials into a mixer, and mixing for 30-40min at 60-85 ℃ to obtain a mixture;
in the step S2, the mixture is led into a smelting furnace for smelting, and the smelting comprises the following steps:
firstly, heating a smelting furnace to 80-100 ℃ and introducing a mixture;
secondly, introducing nitrogen into the smelting furnace, and extruding and discharging all oxygen in the smelting furnace;
thirdly, setting a mixing rod, and stirring continuously at the speed of 80 r/min;
fourthly, heating the internal temperature of the smelting furnace to 500-600 ℃ for 1h;
fifthly, smelting at a high temperature for 1-1.5h;
in the step S3, the temperature detector is used for monitoring the internal temperature of the smelting furnace, an oxygen detecting instrument is used for detecting the oxygen content in the smelting furnace at any time, and the oxygen detecting instrument is connected with an external nitrogen supply pump, wherein the nitrogen content is 3-4 g/cm 3 If the oxygen in the smelting furnace exceeds the standard, the nitrogen supply pump works to supply air into the smelting furnace to smelt the furnaceExtruding and discharging oxygen in the nitrogen supply pump, wherein the working flow of the nitrogen supply pump is 3-4 cm 3 /s；
And S5, blowing air to cool the surface of the die, so that the temperature is reduced to 40-45 ℃ and the cooling time is 10-20min, and opening the die after cooling is completed to obtain the spiral gear.
2. The method for manufacturing the spiral gear for the automobile skylight motor according to claim 1, wherein after the high-temperature smelting in the step S3 is completed, the temperature is gradually reduced to 300-350 ℃ for 30-40min.
3. The manufacturing method of the spiral gear for the automobile skylight motor according to claim 1, wherein the S4 mold comprises an upper mold and a lower mold, and the upper mold and the lower mold are preheated at 260-300 ℃; then, the upper die and the lower die are combined and then flushed by nitrogen; and finally, introducing the smelting liquid into a mould for shaping.
4. The method for manufacturing the spiral gear for the motor of the automobile sunroof according to claim 1, wherein the step S7 is performed by polishing the corners of the spiral gear and then polishing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110584907.7A CN113265598B (en) | 2021-05-27 | 2021-05-27 | Manufacturing method of spiral gear applied to automobile skylight motor |
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| CN202110584907.7A CN113265598B (en) | 2021-05-27 | 2021-05-27 | Manufacturing method of spiral gear applied to automobile skylight motor |
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| CN113265598A CN113265598A (en) | 2021-08-17 |
| CN113265598B true CN113265598B (en) | 2023-06-27 |
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| JP3160115B2 (en) * | 1993-04-06 | 2001-04-23 | 新日本製鐵株式会社 | Method for producing steel material for welded structures with good heat input weld toughness |
| CN1858288A (en) * | 2006-06-06 | 2006-11-08 | 吉林大学 | Sintered metal material for assembled hollow camshaft and cam and its preparing and treating method |
| CN105018824B (en) * | 2014-04-17 | 2017-09-26 | 东睦新材料集团股份有限公司 | A kind of preparation method of P/M cam |
| CN106756280B (en) * | 2017-01-13 | 2018-07-24 | 大楚神驰车轮股份有限公司 | A kind of preparation process of enhanced type wheel rim flange ring |
| CN109695004B (en) * | 2018-12-17 | 2020-12-22 | 东睦新材料集团股份有限公司 | Manufacturing method of iron-based powder metallurgy part |
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