CN203725537U - High-temperature friction coefficient measurement device for plates - Google Patents
High-temperature friction coefficient measurement device for plates Download PDFInfo
- Publication number
- CN203725537U CN203725537U CN201420013222.2U CN201420013222U CN203725537U CN 203725537 U CN203725537 U CN 203725537U CN 201420013222 U CN201420013222 U CN 201420013222U CN 203725537 U CN203725537 U CN 203725537U
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- China
- Prior art keywords
- friction coefficient
- sheet material
- mould
- heating cabinet
- cooling water
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- 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.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 title abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 mould Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a high-temperature friction coefficient measurement device for plates. The high-temperature friction coefficient measurement device comprises a heating box (1), a plate (2), a die (3), and a cooling water channel (4), wherein an open pore is formed in the top end of the heating box (1), the plate (2) enters into and exits from the heating box (1) through a pore passage, the die (3) is arranged above the heating box (1), and the cooling water channel (4) is formed in the die (3). According to the device, the problem that the friction coefficient in a hot-stamping forming technology is difficult to accurately measure is solved, so that the numerical simulation precision of the hot-stamping technology can be improved, and reliable trial data can be provided for the hot-stamping technology and the die design.
Description
Technical field
The utility model relates to a kind of sheet material high temperature friction coefficient measurement mechanism, friction coefficient measuring apparatus while especially relating to a kind of hot press-formed technique.
Background technology
Lightweight is one of main method realizing automotive energy-saving emission-reducing, simultaneously in order to improve shock resistance and the crashworthiness of automobile, automobile structure selection is inevitable to be changed to high-strength lightization, high strength steel and unimach and aluminium, magnesium alloy materials just progressively replace orthodox car vehicle body steel, and have become the important channel that meets automobile loss of weight and increase collision safety performance.But ultrahigh-strength steel plates Plastic Forming is at ambient temperature poor, required stamping press is large, springback capacity after stamping is large, the size and dimension low precision of part, and therefore traditional cold punching forming process is difficult to solve the difficult problem that high-strength steel sheet runs in body of a motor car manufacture.Hot press-formed technique is that sheet material is heated to above certain the suitable temperature of recrystallization temperature, make after its complete austenitizing, be transferred to rapidly in mould, carry out stamping, carry out Quenching Treatment to obtain the high strength component at room temperature with even martensitic structure, be a kind of novel process technology that can effectively solve a unimach shaping difficult problem simultaneously.
Conventional panels friction coefficient measurement is to measure at normal temperatures, and by the resistance heated rod heating mould in mould, and sheet material is normal temperature state.When drop stamping, be that sheet material is heated, in mould, have water passage cooling device, actual conditions when therefore conventional high-temperature friction coefficient measuring apparatus can not real simulation drop stamping.And hot press-formed technique is that sheet material is heated to above certain the suitable temperature of recrystallization temperature, then be transferred to rapidly in the mould that is connected with cooling water channel, carry out stamping, utilize the cooling water channel in mould to carry out Quenching Treatment, to obtain the high strength part at room temperature with even martensitic structure.Therefore, high temperature friction coefficient measurement mechanism need to design a kind of hot forming time, to obtain the accurate coefficient of friction under relevant temperature state, thereby can improve drop stamping technique simulation precision, simultaneously for drop stamping technique and Design of Dies provide full and accurate reliable test data.
Summary of the invention
For solving the deficiencies in the prior art, sheet material high temperature friction coefficient measurement mechanism when the utility model provides a kind of drop stamping technique.
The technical scheme that the utility model adopts is: measurement mechanism comprises heating cabinet, sheet material, mould, cooling water channel, the perforate of heating cabinet top, and sheet material passes in and out heating cabinet by duct, and heating cabinet top is provided with mould, is provided with cooling water channel in mould.Sheet material is heated to more than recrystallization temperature suitable temperature in heating cabinet, makes its complete austenitizing.
After having heated, when sheet material upwards stretches, mould is closed under setting pressure, cooling water channel water flow inside starts to flow with setting speed, then sheet material starts upwards to stretch with setting speed, when the inner complete austenitizing sheet material process of heating cabinet mould, start image data and measure high temperature friction coefficient, the concrete numerical value of high temperature friction coefficient under various state of the art when this process can be measured drop stamping.
The beneficial effects of the utility model are: when this device has solved hot press-formed technique, coefficient of friction is difficult to the problem of Measurement accuracy, thereby can improve drop stamping technique simulation precision, simultaneously for drop stamping technique and Design of Dies provide full and accurate reliable test data.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated:
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the structure chart of the high temperature friction coefficient measurement mechanism of background technology.
In figure: 1, heating cabinet, 2, sheet material, 3, mould, 4, cooling water channel 5, resistance heated rod.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is further described in detail, the embodiment providing is only in order to illustrate the utility model, instead of in order to limit scope of the present utility model.
As shown in Figure 1: high temperature friction coefficient measurement mechanism comprises heating cabinet 1, sheet material 2, mould 3, cooling water channel 4, heating cabinet 1 top perforate, sheet material 2 passes in and out heating cabinet 1 by duct, and heating cabinet 1 top is provided with mould 3, is provided with cooling water channel 4 in mould 3; Mould 3 closures when sheet material 2 upwards stretches.Measured thin plate is processed into 45mm*500mm rectangle sheet sheet material 2 samples, and thickness is as the criterion with gauge of sheet, specimen surface is cleaned up and is dried with anhydrous propanone.Before test, the working face of mould 3 is dry or damp sand paper is thoroughly polished and dry with alcohol with No. 800, to meet the requirement of test.Sample sheet material 2 is placed in to heating cabinet, and after the sample top clamp that is exposed at heating cabinet outside is placed, heating cabinet 1 is heated to 950 degree, be incubated and within 3 minutes, make the whole austenitizings of sample, then controlling mould 3 applies and sets load 10KN sample, control 4 li of water velocity 100L/min of cooling water channel, sample is upwards drawn with the speed of 150mm/min.When sample in heating cabinet has, 100mm is long is pulled through test mould, sheds tensile force and punch-die pressure and takes out sample, and processing is obtained data and arranged calculating.
Claims (2)
1. a sheet material high temperature friction coefficient testing arrangement, it is characterized in that: comprise heating cabinet (1), sheet material (2), mould (3), cooling water channel (4), heating cabinet (1) top perforate, sheet material (2) passes in and out heating cabinet (1) by duct, heating cabinet (1) top is provided with mould (3), is provided with cooling water channel (4) in mould (3).
2. sheet material high temperature friction coefficient testing arrangement according to claim 1, is characterized in that: mould (3) closure when described sheet material (2) upwards stretches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013222.2U CN203725537U (en) | 2014-01-09 | 2014-01-09 | High-temperature friction coefficient measurement device for plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013222.2U CN203725537U (en) | 2014-01-09 | 2014-01-09 | High-temperature friction coefficient measurement device for plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203725537U true CN203725537U (en) | 2014-07-23 |
Family
ID=51195640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013222.2U Expired - Lifetime CN203725537U (en) | 2014-01-09 | 2014-01-09 | High-temperature friction coefficient measurement device for plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203725537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510166A (en) * | 2016-01-06 | 2016-04-20 | 上海大学 | Plate-strip type high temperature friction wear testing machine and testing method thereof |
-
2014
- 2014-01-09 CN CN201420013222.2U patent/CN203725537U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510166A (en) * | 2016-01-06 | 2016-04-20 | 上海大学 | Plate-strip type high temperature friction wear testing machine and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: SHOUGANG GROUP Co.,Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: SHOUGANG Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |