GB/T 4461-1992 Hot-dip bimetallic strip

This standard specifies the grade, size, shape, technical requirements, test methods and acceptance rules of thermal bimetallic strips. This standard is applicable to thermal bimetallic strips used for making thermal sensitive parts in temperature control, temperature compensation and temperature indicating devices. GB/T 4461-1992 Thermal Bimetallic Strips GB/T4461-1992 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Thernostatic bimetal strips
Thernostatic bimetal stripswwW.bzxz.Net
1 Subject content and scope of application
GR/T 4461-.92
Replaces G 4461
This standard specifies the brand, size, shape, technical requirements, test methods and acceptance rules of thermostatic bimetal strips. This standard is applicable to thermostatic bimetal strips used for making thermal sensitive elements in temperature control, temperature compensation and temperature indicating devices. 2 Reference standards
GB5986 Test method for elastic modulus of thermostatic bimetal GB5987 Test method for temperature curvature of thermostatic bimetal GB 8364 Test method for bimetallic curve GB/T112 General provisions for packaging, marking and quality certificate of precision alloys 3 Brand
The brand of thermostatic bimetal. The alloy brand of component layer and the characteristics of thermostatic bimetal are shown in Table 1. Table 1
Hot bimetallic grade
5J20110
5J14140
5J15120
5J1480
5J1380
5J1580
5J1017
5J1113
5J1416
5J1070
5J0756
High expansion lip
Alloy grade of component layer
Intermediate layer
Mn75Ni15Cti10
(Mn72Nil0Cu18)
Mn75Ni15Cu10
(Mn72Ni1QCu18)
Mn75Ni15Cu10
(Mn72Ni10Cu18)
Ni22Cr3
N:19Mn7
Ni20Mn6
Cu62n38
Cu62Zn38
Ni19Cr11
Ni22Cr3
State Bureau of Technical Supervision 1992-11-16 Approved low expansion layer
Ni45Cr6
High sensitivity, commercial resistance, medium temperature
Medium sensitivity, high resistance, medium temperature
Medium sensitivity, high resistance, medium temperature
Medium sensitivity, medium resistance, medium temperature
Medium digital sense, medium resistance, low temperature
Medium sensitivity, medium resistance, medium temperature
Medium sensitivity, low resistance, medium temperature
Medium sensitivity, low electrical extension, high thermal conductivity
Medium sensitivity, low resistance, high thermal conductivity
Medium micro-sense, relatively high temperature
Low digital sense, commercial temperature
Implemented on June 1, 1993
Thermal double gold grade
5J1306A
5J1306B
5J1309 4
5J1309B
5J1411A
5J1411B
5J1417A
5J1417R| |tt||51320A
5J1320B
5J1325A
5J1325B
5J1430A||tt ||5J143DR
5J1433A
5J1133B
5J1435A
51135B
5 J1410A
SJ1440B
5J1455A
5J1455B
5J1075
GB/T 4461—92
Continued Table 1
Alloy grade of weaving layer
Shangpeng service layer
Ni20Mn6
Ni20Mn6
Ni22Cr3
Ni20Mne
Ni22Ct3
Ni20Mn
Ni22Cr3
Ni20Mn6
Ni22Cr3
Ni20Mn6
Ni22Ct 3
Ni20Mn6
Ni22Cr3
Ni20Mn6
Ni22Cr3
NizoMnG
Ni22Cr3
Ni20Mn6
Ni22Cr3
Ni20Mnf
Ni22Cr3
Nil6Crll
Middle layer
Low bottom
Ni20Ca26Crg
Resistor series
Resistor series
Resistor series
Resistor series
Electric series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Resistor series
Electric series
Resistor series|| tt||Resistor series
Resistor series
Resistor series
Resistor series
Saturation resistance, high strength
Note: 5J20110, 5J14140.5J15120 are high expansion layer alloys of the same brand. It is allowed to use the Mn72Ni10Cu18 in brackets. 4 Size. Appearance
The size and allowable deviation of hot-dip galvanic strips shall comply with the provisions of Table 2. The fixed-length supply shall be indicated in the contract. Size
0. 10 ~- 0. 23
.-n. 25 ~0. 50
>0. 50~0. 75
>0. 75~1. 50
1. 50 3. 00
Allowable deviation
GB/T 4461-92
Allowable deviation
Note: The allowable deviation of length dimension is applicable to the supply of fixed pieces. ② In the case of unchanged tolerance band, if the purchaser requires and specifies in the contract, it is allowed to supply with negative deviation. Dimension
Allowable deviation
4.2 Appearance
4.2.1 The component layers of the hot bimetallic strip should be firmly combined, without delamination and edge cracks. The burr shall not exceed half of the thickness allowable tolerance.
4.2.2 The hot bimetallic strip shall not be seriously twisted. 4.2.3 The bending of hot-dip metal strip shall not exceed F3mm per meter. 4.2.4 The longitudinal and transverse curvature of hot-dip metal strip shall comply with the requirements in Table 3. Table 3
Steel strip thickness
0. 2~<0. 4
Longitudinal curvature radius
Not less than
Transverse curvature radius
4.3 Marking example
a, 5J1480 hot bimetallic strip with a thickness of 1.2mm, a width of 120mm and a fixed length of 1000mm is marked as: 5J1480-1.2X120X1000.GB/T4161-92. 5.11480 hot bimetallic strip with a thickness of 0.5mm and a width of 100mm in rolls is marked as: b.
5J1480-0.5×100-GB/T4461-92
5 Technical requirements
5.1 Chemical composition
Under the condition of ensuring the qualified performance of the hot bimetallic material, the chemical composition of the component layer is shown in Table 4. The lower the value, the less the value will be used as the basis for assessment. 5.2 Delivery Status
Hot-rolled bimetallic strips shall be delivered in coils or strips in cold-rolled state. 5.3 Performance
The specific bending, resistivity and bonding strength tests of hot-dip metal strips shall comply with the provisions in Table 5. The allowable deviation level of specific bending shall be indicated in the contract. If not indicated, it shall be determined by the supplier. The supplier shall select any one of the bonding strength test methods (1I or I). According to the requirements of the purchaser and after agreement between the supply and demand parties, hot-dip metal strips with properties other than those specified in Table 5 may be supplied. GB/T4461-92
2 Price ℃
08-0--50
09 *9 ~09 5
ot'o-1
0e*0~s1'009*0--05 0
0F*0~02*0090~05*0
0'~91*090-0*0
01~0°6
0-6[~-0-2[
1-22-0*52
0-12--0st
6-21--0 -91
0-91~01
(r2--0-6
0-02--0-81
02~0-12
0~02--0*81
59-~0'S
10-91--0't
GB/T 446192
n00221
050 86
002--0-
002~--
002 ~02 -
00--00
002-02--
002~-02
005--02
002 --02--
OSE ~2 -
022—
ost-~o2-
051--02 -
051--02
051-~0-
081-02
081--0-
001~09 -
081 --02-
002-~02-
"PEKIN
5%01千
ua - ti
ti 051--,03
ozotrs
LTOTTS
GE/T 4461
oc0981
000251
an zst:
1002--02
002-02
002 --01: -
002--01-
00--02
00- 02 -
002--2—
02-2—
002 ~
002~, --
00-~ 01,—
002 ~~ 02 —
1~02—
051-~02
0s1-~0z-
051-07
Grid test
(3- 051--.02)
szotrs
VEERES
YOEHERS
5.4 surface quality
GB/T 4461-92
The surface of the hot bimetallic strip should be smooth, without cracks, bubbles, residues, rust spots, severe scratches and harmful spots. 6 Test methods
6.1 Size and appearance inspection
The size and appearance of the hot bimetallic strip are inspected one by one by conventional inspection methods and measuring tools that can meet the accuracy requirements. 6.2 Surface quality inspection
The surface quality of the hot bimetallic strip is inspected by naked eyes one by one. 6.3 Comparative bending test
The pre-bending test should be carried out in accordance with the provisions of GB8361. : 6.4 Resistivity test
The resistivity is measured with a bridge with an accuracy of not less than 0.05 or a potentiometer with an accuracy of not less than 0.03. 6.5 Bonding strength test
6.5.1 Bonding strength test method 1
Repeated bending fracture test
Repeated bending fracture test As shown in the repeated bending diagram, the repeated bending fracture is observed with the naked eye. 6.5.2 Bonding strength test method 1l
6.5.2.1 Torsion test
During the torsion test, the sample should be clamped at a distance of about 5 mm from both ends by a clamp, so that the sample does not loosen. For a sample with a thickness of less than 1 mm, the number of torsion is determined as: the integer value obtained by dividing the distance between the two clamps (i.e. the torsion interval) by 15 mm + For a sample with a thickness greater than or equal to 1 mm, the number of torsion is determined as: the integer value obtained by dividing the torsion interval by 30 mm. Twist according to the obtained number of times, and then reversely twist according to the same number of times (twist 360° as one time) and observe the state of the bonding part with the naked eye. 6.5.2.2 Repeated bending test
Repeated bending test is shown in the figure below. The test piece is clamped with a circular arc metal fixture with a radius equal to the original angle of the test piece specified in Table 6. The test piece is bent 90° in the right direction (called the first bending), and then the test piece is restored (called the second bending). In the same way, the test piece is bent 90° in the left direction (called the third bending). Then the test piece is restored (called the fourth bending). The state of the joint part is observed with the naked eye. According to the repeated bending test diagram, try to select the thickness. C. 581. 0. 6.5.2.3 Bending test. 2. 5 ± 0. 1. 7.5 above 0.2. 10. 0 = 0.2. GB/T 4461 -- 92. Bending arc radius. h. 5 ± 0. 1. 2 ± 0. 1. 5. 1 ± 0. 2
The distance piece
The bending test is to clamp the sample with a T: arc-shaped metal clamp with a radius equal to the specified in Table 6 corresponding to the sample thickness, bend the sample 90° in one direction, then move the sample outward by about 101m, and bend the sample in the opposite direction by 90°. Observe the state of the sample bending with naked eyes.
6.6 Sampling and sample preparation
6.6.1 Sampling method
6.6.1.1 Bend sample: Strips with a finished thickness of less than 0.6mm are cut from semi-finished products, and strips with a finished thickness greater than or equal to 0.6mm are cut from finished products or semi-finished products. 6.6.1.2 Resistivity, repeated bending, repeated bending and bending samples are cut from any part parallel to the rolling direction. 6.6.1.3 Torsion samples are cut from any part perpendicular to the rolling direction. 6.6.2 Sample size
The sample rulers for each test are carried out according to the provisions of Table 7. Test items
Specific bending K
Electrical resistivity
Repeated breaking
Repeated bending
6.6.3 Heat treatment of sample
20. 6--0. B
Strip thickness
Strip thickness
Strip thickness
Strip thickness
Strip thickness
Test length
75~100
Total length
81~105
105~130
Strip width
Specific bending and resistivity samples must be heat treated before measurement to eliminate processing stress. The recommended heat treatment system is shown in Appendix A. 7 Inspection rules
7.1 Inspection and acceptance
The quality inspection and acceptance of hot-dip bimetallic strips shall be carried out by the supplier's technical supervision department. 7.2 Batch rules
Thermal bimetallic strips should be submitted for acceptance in batches, and each batch should consist of thermal bimetallic strips of the same brand, the same smelting furnace number and the same specification.
7.3 Sampling quantity
3% of the number of strips should be taken from each batch, with a minimum of no less than two strips, and a sample should be taken for each test on each strip. 7.4 Re-inspection and judgment rules
GB/T4461—92
If the test results of a certain item do not meet the requirements of Table 5, double the number of samples should be taken from the same batch of strips for re-inspection of the unqualified items. If even one sample fails in the re-inspection result, the batch of strips is judged to be unqualified. 8 Mark
The low expansion layer of the finished product should have a continuous mark.If it is not necessary, it should be stated in the contract. Packaging, marking and quality certificate
The packaging, marking and quality certificate of the finished product shall comply with the relevant provisions of GB/T 112. GB/T 446192
Appendix A
Recommended heat treatment system
Reference)
The heat treatment system of the samples of various grades of hot bimetallic materials shall refer to the provisions of Table A1. Table A1
5J20110
5J14140
5J15120
5J1480
5 J1380
511580
5J1017
5J1413
5J1416
5J 1070
5J0756
5J1306A
5J1306R
5J1309A
5J1309B
5J1411A
5J1111B
SF1417A
5J1417B||t t||5J1320A
5J1320B
5J1325A
5J1325B
5J14304
511430B
5J1433A
5J1433B
5J1435A
5J1435B
5J1440A
5J144013
5J1445A
5J1445B
5J1075
Processing temperature,
26[~280
260~280
260~280||tt ||300320
300--320
300~320
300320
180~200| |tt||180200
380~400
4100~420
250~270
250~2 70
251~270
250~270
25-270
250~270
25 0~270
300-320
300~320
30%~320
300--320||tt ||300~-320
300--320
3041-320
300-320
300-320
300~320
300~320
300~320
300320
300-320
Sample heat treatment system
Hot holding time h
Cooling method
GB/T4461—92
Appendix R
Thermal bimetal temperature curvature
(reference)
Thermal curvature of thermal bimetal strip is shown in Table B1. The values ​​listed in the table are for reference only. Table B1
Temperature curvature
5J20110
5J14140
5J15120
5J1480
5J1380
5J1580
5J1017
5J1413
5J1416
5[1070
5J0756
5J13C6A
Additional instructions:
(Room temperature 13 0℃）
5J1306B
5J1309A
5J1309B
5J|411A
5J141B
5J1417A
5J1417B
5J1320A
5J1320R
5J1325A
5J1325H
5J1430A
This standard is proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard is sponsored by the Information Standard Research Institute of the Ministry of Metallurgical Industry. Temperature rate F
(Room temperature～130)
5J1430B
5J1433B
5J1435A
5J1435B
5J1440A
5J144015
5J1455A
5J1455B
5J1075
This standard was drafted by Shaanxi Iron and Steel Research Institute, Ehai Iron and Steel Research Institute, and Shanghai Electric Science Research Institute. The main drafters of this standard are Li Xin, Cai Pingyou, Shao Qing, Shen Yanglong, and Zhang Ailing. The level of this standard is marked GB/T4461-92 [Temperature curvature F
10 5/ c
(Room temperature 13℃)The values ​​listed in the table are for reference only. Table B1
Temperature curvature
5J20110
5J14140
5J15120
5J1480
5J1380
5J1580
5J1017
5J1413
5J1416
5[1070
5J0756
5J13C6A
Additional instructions:
(Room temperature 13 0℃）
5J1306B
5J1309A
5J1309B
5J|411A
5J141B
5J1417A
5J1417B
5J1320A
5J1320R
5J1325A
5J1325H
5J1430A
This standard is proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard is sponsored by the Information Standard Research Institute of the Ministry of Metallurgical Industry. Temperature rate F
(Room temperature～130)
5J1430B
5J1433B
5J1435A
5J1435B
5J1440A
5J144015
5J1455A
5J1455B
5J1075
This standard was drafted by Shaanxi Iron and Steel Research Institute, Ehai Iron and Steel Research Institute, and Shanghai Electric Science Research Institute. The main drafters of this standard are Li Xin, Cai Pingyou, Shao Qing, Shen Yanglong, and Zhang Ailing. The level of this standard is marked GB/T4461-92 [Temperature curvature F
10 5/ c
(Room temperature 13℃)The values ​​listed in the table are for reference only. Table B1
Temperature curvature
5J20110
5J14140
5J15120
5J1480
5J1380
5J1580
5J1017
5J1413
5J1416
5[1070
5J0756
5J13C6A
Additional instructions:
(Room temperature 13 0℃）
5J1306B
5J1309A
5J1309B
5J|411A
5J141B
5J1417A
5J1417B
5J1320A
5J1320R
5J1325A
5J1325H
5J1430A
This standard is proposed by the Ministry of Metallurgical Industry of the People's Republic of China. This standard is sponsored by the Information Standard Research Institute of the Ministry of Metallurgical Industry. Temperature rate F
(Room temperature～130)
5J1430B
5J1433B
5J1435A
5J1435B
5J1440A
5J144015
5J1455A
5J1455B
5J1075
This standard was drafted by Shaanxi Iron and Steel Research Institute, Ehai Iron and Steel Research Institute, and Shanghai Electric Science Research Institute. The main drafters of this standard are Li Xin, Cai Pingyou, Shao Qing, Shen Yanglong, and Zhang Ailing. The level of this standard is marked GB/T4461-92 [Temperature curvature F
10 5/ c
(Room temperature 13℃)
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