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Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape
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Basic data
| Standard ID | GB/T 39142.1-2020 (GB/T39142.1-2020) |
| Description (Translated English) | Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J12 |
| Classification of International Standard | 21.100.10 |
| Word Count Estimation | 10,172 |
| Date of Issue | 2020-10-11 |
| Date of Implementation | 2021-05-01 |
| Regulation (derived from) | National Standard Announcement No. 21 of 2020 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 39142.1-2020: Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specification of plastic-steel bilayer self-lubricating materials - Part 1.Running-in layer with modified PTFE tape
ICS 21.100.10
J12
National Standards of People's Republic of China
Plastic-steel back two-layer bonding composite self-lubricating sheet
Technical conditions part 1.modified polytetrafluoroethylene
(PTFE) Anti-friction layer sheet
2020-10-11 released
2021-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
GB/T 39142 "Plastic-steel back two-layer bonding composite self-lubricating sheet technical conditions" is planned to be divided into the following parts.
---Part 1.Plates with modified polytetrafluoroethylene (PTFE) anti-friction layer;
This part is Part 1 of GB/T 39142.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by China Machinery Industry Federation.
This part is under the jurisdiction of the National Sliding Bearing Standardization Technical Committee (SAC/TC236).
Drafting organizations of this section. Mingyang Technology (Suzhou) Co., Ltd., China National Machinery Productivity Promotion Center, Zhejiang Shuangfei Oilless Bearing Co., Ltd.
Co., Ltd., Zhejiang Changsheng Sliding Bearing Co., Ltd., Zhejiang Zhongda Precision Components Co., Ltd.
Plastic-steel back two-layer bonding composite self-lubricating sheet
Technical conditions part 1.modified polytetrafluoroethylene
(PTFE) Anti-friction layer sheet
1 Scope
This part of GB/T 39142 stipulates that the surface plastic layer is modified polytetrafluoroethylene plastic-steel back two-layer bonding composite self-lubricating sheet
The material structure characteristics, technical requirements and test methods.
This section applies to the self-lubricating board (hereinafter referred to as the board) made by the plastic layer of modified polytetrafluoroethylene and steel back bonding.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB/T 1041 Determination of plastic compression properties
GB/T 3960 Plastic sliding friction and wear test method
GB/T 9286 Cross-cut test of paint and varnish film
3 Structural features
The board is composed of a surface plastic layer and a steel back layer by bonding. The surface plastic layer adopts modified polytetrafluoroethylene, and its thickness is
0.1mm~1.0mm. The steel back layer is made of high-quality carbon structural steel, and the carbon content is generally not more than 0.08%. The surface of the steel back can be galvanized or tinned to prevent corrosion.
4 Technical requirements
4.1 Bonding force between layers
According to the method specified in 5.1, the peeling condition of the board meets the 0-level standard.
4.2 Chemical stability
The plate is tested for chemical stability according to the requirements of 5.2, and the weight change rate meets the requirements of Table 1.
4.3 Compression set
The plate is tested according to the test conditions specified in 5.3, and the thickness reduction rate of the sample meets the requirements of Table 2.
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