CN105543663A - Preparation method of alloy vehicle door hinge - Google Patents
Preparation method of alloy vehicle door hinge Download PDFInfo
- Publication number
- CN105543663A CN105543663A CN201510994886.0A CN201510994886A CN105543663A CN 105543663 A CN105543663 A CN 105543663A CN 201510994886 A CN201510994886 A CN 201510994886A CN 105543663 A CN105543663 A CN 105543663A
- Authority
- CN
- China
- Prior art keywords
- forging
- station
- roll forging
- door hinge
- sintering furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
Abstract
The invention discloses a preparation method of an alloy vehicle door hinge. The preparation method of the alloy vehicle door hinge comprises the following step that a bar comprising, by weight, 0.16%-0.22% of C, 0.36%-0.86% of Si, 0.26%-0.43% of Mn, 0.007%-0.009% of P, 0.006%-0.012% of S, 0.06%-0.09% of W, 2.5%-3.5% of Cr, 0.003%-0.006% of B, 0.01%-0.03% of Zr and the balance Fe and inevitable impurities is prepared. According to the preparation method of the alloy vehicle door hinge, the compactness of a part workblank is good, the qualified rate is high, material consumption of a product is reduced, and the service life of the product is prolonged.
Description
Technical field
The present invention relates to a kind of alloy car door hinge preparation method.
Background technology
Can from car into the car, get back to car in car, so there has been car door to allow driver and passenger.In order to car door and vehicle body are coupled together, and car door can be opened an account, so there has been body hinge.The mechanical property of body hinge and use properties directly affect production cost and safety performance.
Summary of the invention
The object of this invention is to provide a kind of alloy car door hinge preparation method, the compactness of automotive hinge is good, and qualification rate is high, has saved product materials, improves the work-ing life of product.
Technical scheme of the present invention is as follows:
A kind of alloy car door hinge preparation method, comprises the following steps:
A, cast steel bar
In bar, chemical component weight per-cent is: 0.16%≤C≤0.22%, 0.36≤Si≤0.86%, 0.26≤Mn≤0.43%, 0.007≤P≤0.009%, 0.006≤S≤0.012%, 0.06%≤W≤0.09%, 2.5%≤Cr≤3.5%, 0.003≤B≤0.006%, 0.01≤Zr≤0.03%, surplus is iron and inevitable impurity;
B, forging step
(1) in the temperature range of 1200 DEG C-1050 DEG C, roller forging sheet stamping: adopt following twice roll forging work step, first roll forging work step: the one end of clamping the bar after heating, send on the first station forge rolling die along the direction level vertical with forging roller and process, obtain the first station roll forging part, second roll forging work step: gained first station roll forging part is rotated about the axis 90 °, sends on the second station forge rolling die along the direction level vertical with forging roller and processes, obtain the second station roll forging part;
C, in vacuum sintering furnace sinter 1.5 ~ 2.5h, vacuum tightness-0.13 ~-0.21Pa, sintering furnace temperature 1000 DEG C ~ 1150 DEG C, to 950-1000 DEG C of condition, 2-2.5 hour is sintered with 12-15 DEG C/min of ramp, be incubated 1-1.5 hour under being cooled to 500-540 DEG C of condition with 2-4 DEG C/min of speed again, finally pressed compact sent in 100-120 DEG C and cool 50-60 minute.
In vacuum sintering furnace, 2h is sintered in described step C, vacuum tightness-0.17Pa, sintering furnace temperature 1020 DEG C, to sinter 2.2 hours under 13 DEG C/min of ramp to 970 DEG C conditions, be incubated 1.2 hours under being cooled to 520 DEG C of conditions with 3 DEG C/min of speed again, finally pressed compact sent in 110 DEG C and cool 55 minutes.
The compactness of automotive hinge of the present invention is good, and qualification rate is high, has saved product materials, improves the work-ing life of product.
Mechanics properties testing data of the present invention are as follows:
Tensile strength sigma b (MPa): >=580
Yield strength σ s (MPa): >=560
Hardness :≤123HB.
Embodiment
A kind of alloy car door hinge preparation method, comprises the following steps:
A, cast steel bar
In bar, chemical component weight per-cent is: 0.16%≤C≤0.22%, 0.36≤Si≤0.86%, 0.26≤Mn≤0.43%, 0.007≤P≤0.009%, 0.006≤S≤0.012%, 0.06%≤W≤0.09%, 2.5%≤Cr≤3.5%, 0.003≤B≤0.006%, 0.01≤Zr≤0.03%, surplus is iron and inevitable impurity;
B, forging step
(1) in the temperature range of 1200 DEG C-1050 DEG C, roller forging sheet stamping: adopt following twice roll forging work step, first roll forging work step: the one end of clamping the bar after heating, send on the first station forge rolling die along the direction level vertical with forging roller and process, obtain the first station roll forging part, second roll forging work step: gained first station roll forging part is rotated about the axis 90 °, sends on the second station forge rolling die along the direction level vertical with forging roller and processes, obtain the second station roll forging part;
C, in vacuum sintering furnace, sinter 2h, vacuum tightness-0.17Pa, sintering furnace temperature 1020 DEG C, to sinter 2.2 hours under 13 DEG C/min of ramp to 970 DEG C conditions, be incubated 1.2 hours under being cooled to 520 DEG C of conditions with 3 DEG C/min of speed again, finally pressed compact sent in 110 DEG C and cool 55 minutes.
Claims (2)
1. an alloy car door hinge preparation method, is characterized in that, comprises the following steps:
A, cast steel bar
In bar, chemical component weight per-cent is: 0.16%≤C≤0.22%, 0.36≤Si≤0.86%, 0.26≤Mn≤0.43%, 0.007≤P≤0.009%, 0.006≤S≤0.012%, 0.06%≤W≤0.09%, 2.5%≤Cr≤3.5%, 0.003≤B≤0.006%, 0.01≤Zr≤0.03%, surplus is iron and inevitable impurity;
B, forging step
(1) in the temperature range of 1200 DEG C-1050 DEG C, roller forging sheet stamping: adopt following twice roll forging work step, first roll forging work step: the one end of clamping the bar after heating, send on the first station forge rolling die along the direction level vertical with forging roller and process, obtain the first station roll forging part, second roll forging work step: gained first station roll forging part is rotated about the axis 90 °, sends on the second station forge rolling die along the direction level vertical with forging roller and processes, obtain the second station roll forging part;
C, in vacuum sintering furnace sinter 1.5 ~ 2.5h, vacuum tightness-0.13 ~-0.21Pa, sintering furnace temperature 1000 DEG C ~ 1150 DEG C, to 950-1000 DEG C of condition, 2-2.5 hour is sintered with 12-15 DEG C/min of ramp, be incubated 1-1.5 hour under being cooled to 500-540 DEG C of condition with 2-4 DEG C/min of speed again, finally pressed compact sent in 100-120 DEG C and cool 50-60 minute.
2. alloy car door hinge preparation method according to claim 1, it is characterized in that, in vacuum sintering furnace, 2h is sintered in described step C, vacuum tightness-0.17Pa, sintering furnace temperature 1020 DEG C, to sinter 2.2 hours under 13 DEG C/min of ramp to 970 DEG C conditions, then be incubated 1.2 hours under being cooled to 520 DEG C of conditions with 3 DEG C/min of speed, finally pressed compact sent in 110 DEG C and cool 55 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994886.0A CN105543663A (en) | 2015-12-28 | 2015-12-28 | Preparation method of alloy vehicle door hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510994886.0A CN105543663A (en) | 2015-12-28 | 2015-12-28 | Preparation method of alloy vehicle door hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105543663A true CN105543663A (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510994886.0A Pending CN105543663A (en) | 2015-12-28 | 2015-12-28 | Preparation method of alloy vehicle door hinge |
Country Status (1)
| Country | Link |
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| CN (1) | CN105543663A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764175A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of anti-dropout metal hose joint |
| CN106763080A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of high leakproofness metal hose uses attaching nut |
| CN111906238A (en) * | 2020-07-20 | 2020-11-10 | 宣城龙虎精工科技有限公司 | Forging process of automobile door hinge |
| CN112108607A (en) * | 2020-08-12 | 2020-12-22 | 沈阳中钛装备制造有限公司 | Forming method of titanium alloy vehicle door hinge forging |
Citations (4)
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| CN102162069A (en) * | 2010-02-23 | 2011-08-24 | 宝山钢铁股份有限公司 | Flying-shear main-transmission gearwheel steel and preparation method thereof |
| CN102886661A (en) * | 2012-09-11 | 2013-01-23 | 昌利锻造有限公司 | Method for forging spiral bevel gear pinion of automobile rear axle |
| CN103469083A (en) * | 2013-09-18 | 2013-12-25 | 攀枝花学院 | Heat-resistant cast steel and application thereof |
| CN105102657A (en) * | 2013-03-29 | 2015-11-25 | 杰富意钢铁株式会社 | Steel material and hydrogen container as well as manufacturing methods therefor |
-
2015
- 2015-12-28 CN CN201510994886.0A patent/CN105543663A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162069A (en) * | 2010-02-23 | 2011-08-24 | 宝山钢铁股份有限公司 | Flying-shear main-transmission gearwheel steel and preparation method thereof |
| CN102886661A (en) * | 2012-09-11 | 2013-01-23 | 昌利锻造有限公司 | Method for forging spiral bevel gear pinion of automobile rear axle |
| CN105102657A (en) * | 2013-03-29 | 2015-11-25 | 杰富意钢铁株式会社 | Steel material and hydrogen container as well as manufacturing methods therefor |
| CN103469083A (en) * | 2013-09-18 | 2013-12-25 | 攀枝花学院 | Heat-resistant cast steel and application thereof |
Non-Patent Citations (1)
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| 张华诚 主编: "《粉末冶金实用工艺学》", 30 September 2004 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764175A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of anti-dropout metal hose joint |
| CN106763080A (en) * | 2016-12-27 | 2017-05-31 | 怀宁县鑫泰钢结构有限公司 | A kind of high leakproofness metal hose uses attaching nut |
| CN111906238A (en) * | 2020-07-20 | 2020-11-10 | 宣城龙虎精工科技有限公司 | Forging process of automobile door hinge |
| CN112108607A (en) * | 2020-08-12 | 2020-12-22 | 沈阳中钛装备制造有限公司 | Forming method of titanium alloy vehicle door hinge forging |
| CN112108607B (en) * | 2020-08-12 | 2022-05-20 | 沈阳中钛装备制造有限公司 | Forming method of titanium alloy vehicle door hinge forging |
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Application publication date: 20160504 |