This standard specifies the product model, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of plastic woven fabrics for underground coal mine false ceilings (hereinafter referred to as woven fabrics). This standard applies to single-layer or multi-layer plastic woven fabrics and matching side ropes for underground coal mine false ceilings. MT 960-2005 Plastic woven fabrics for underground coal mine false ceilings MT960-2005 Standard download decompression password: www.bzxz.net

ICS 59.080.40
Rate number: 16791—2005
Coal Industry Standard of the People's Republic of China
MT9602005
Plastic woven fabric protecting top-plane in coal mine2005-09-23 Issued
National Development and Reform Commission
2006-02-01 Implementation
4.2.,4.3,4.4,4.5 of this standard are mandatory; the rest are recommended. Appendix A of this standard is a normative appendix
This standard is issued by the Science and Technology Development Department of China Coal Industry Association. This standard is approved by the Coal Industry Coal Mine Safety Standardization Technical Committee. This standard was drafted by the Shanghai Branch of China Coal Research Institute. The drafters of this standard are: Shanghai Branch of China Coal Research Institute, Shanghai Branch of China Coal Industry Association ... YT960-2005
Plastic woven fabric for underground false roof in coal mines
MT 9G0—?0C5
The standard specifies the product model, cost requirements, inspection methods, inspection rules, packaging, manufacturing and storage of plastic woven fabrics for underground false roof in coal mines.
This standard specifies the use of plastic woven fabrics for underground false roof in coal mines (with a simplified version), the following product model, cost requirements, inspection methods, inspection rules, packaging, manufacturing and storage of plastic woven fabrics for underground false roof in coal mines, ... The contents or revised versions of this document are not applicable to the standard after the revision. However, the parties involved in the design of this document may use the latest version of this document. The referenced documents are not accurate. The latest referenced documents are based on the date of reference. This standard is applicable to MT: 13-19% coal mine composite products flame retardant static test method and judgment of current 5M41 coal mine plastic false test item 3 product models and specifications || tt || 3. 1 Product model
"The product model is reduced according to the quality of the stone and the effect of the layer: it can be used as the basis for the coal mine wood compensation industry. The number of layers can be light layers, two layers, two layers, etc. The composition is:
The small resistance can earn the mountain
The number of layers
The lining material
The code for the false roof opening material group in the coal mine
The PP multi-indicator shows the quality of the double-layer virtual ore and the lower limit 4.1 Appearance The woven fabric should be smooth and without leakage or yarn skipping. 4.2 Tensile strength The tensile strength of single-layer fabrics should conform to the requirements of Table 1: Table 1 Tensile strength of single-layer fabrics Product type Visual inspection 4.3 Surface resistance 31--3-S For single-layer fabrics, the electrical arithmetic average value should be greater than 1E :S
M19602005
4.4 Combustion performance
The alcohol and heat resistance of single-layer woven clothing shall meet the requirements of Table 3. Table 2 Alcohol adhesion and lamp combustion performance of single-layer woven fabrics
Average time of alcohol light
|4.5 Properties of denim
|Product resistance to pure natural performance
|5 Test method
1 External Observation
Use the European method to check
5.2 Determination of the sample thickness of single-layer woven fabric
E.2,1 Sample preparation
When there is no sense of heat, the average distance between the sample and the sample is low
Cut the sample with a thickness of 501 nm and a width of nm at least 15 mm from the edge of the product (3 pieces in each warp direction). If the load is in the middle, half of the test piece shall be removed. 5.2,2 Instruments and equipment
5,2.2.1 Tensile testing machine: standard price:%. 5.2.2.2 Central holding device: a standard temperature (10±) mm/mr, in the heat value ratio is, the test should keep the light off. 5.2.3 Determination of the remaining
5.2,3.1 During the test, the pressure and temperature of the seat are (232)% relative to the port and the temperature should be 45-755%. 5.2.3.2 The test details must be divided into two measuring devices of the test machine. The longitudinal center line of the sample is small. 5.2.3.3 Cut the starting standard 1. The original pulling speed is <10) rm/mi5. Record the maximum pulling time of the test package F5.2.3.4 When the charge is added, the sample will be paid, and the island between the two weighing lines will be recorded. 5.2.3.5 If the test bar slips and shears at the marked position, the sample is counted, and the test bar must be taken for verification. 5. 2.4 Results are given in table 2: The tensile strength is given by the scientific calculation formula: The tensile strength, the unit is meter (m/m: the original position is the tensile strength, the unit is these numbers. The elongation and tensile strength of the parameter samples are determined separately. The arithmetic mean of the tensile strength of the test specimens is taken and the final results are adjusted to these numbers. 5.3 Surface electrical strength determination 5.3. 1 Test specimens The sample selection shall be at least 311r×mm. 5. 3. 1. -
5,3.1. Method to verify, the external energy rate change rate is 2155 or 2312 at a temperature of 2312 and a humidity of 60%-705%. 3. 2, measurement step
Continue with the observation of MT..31U5:
5.3.3 Results
The following measurement results should be recorded along the way
a) The surface resistance of the two surfaces of the test piece is calculated, (a) The arithmetic mean of the three surface resistances of the upper surface, calculated to one decimal place: =) The arithmetic mean of the three surface resistances of the lower surface. The results should be recorded to one decimal place. 5.4 Flame retardancy tests 5.4. Lamp burning test 5.4.1.1 Test piece: Cut to a maximum length of 300 mm and a single-layer woven fabric with a grammage of 50 μm. 5.4.1.2 Test: Test in accordance with M1141. 5.4.3 Results: The following test results shall be recorded and calculated: 1) The time for frying and the median value of the time without baking, 2) The technical average time for the test piece with and without baking, rounded to the nearest minimum effective point. 5.4.2 Burning test of alcohol lampbzxZ.net
5.4.2.1 Preparation:
Take a single cloth sample with a length of 30 mm and a thickness of 5.4.2.2 Determination:
According to the period of MI 14],
5.4.2.3 Result expression:
The following results should be recorded and calculated:
) The burning time of the test piece should not be adjusted before combustion, but the calculation result should be calculated to the nearest digit after this point, and the test rules
E,1 Factory inspection
6.1.1 Production quality inspection should be carried out on each batch of products. The inspection shall be based on the technology. At the same time, the same raw material number of the same process shall be checked and the product number of the same process shall be checked and inspected in detail every 10 minutes. The quality certificate shall be issued after the quality is tested and inspected! 6.1.2 The factory inspection date shall be 3 days.
Table 3 Inspection items Control items D Tensile strength film
Test you
Lubrication lamp combustion test road
City: ""Legal training road"
"Anjing machine line payment
Output inspection
Form control inspection
MT960-2005
6.2 Type inspection
6.2.1 If one of the following circumstances occurs, the type inspection shall be carried out for new products or when the product is put into production; 6
For example, if the structure, material, and process are changed, which may affect the product: during normal production, an inspection shall be carried out every 2 years; d) The product is 2 years old and when production is resumed, the inspection result of the factory does not match the result of the first inspection;! The national quality supervision and administration department will make a request for type inspection. 2.2 The samples for type inspection shall be taken from the products that have passed the factory inspection. The sampling base is 3m. The total length of sampling is 4m. E.2.3 Type inspection 0H See table: 1.
5. 3 Judgment rules
6. 3. 1 The case
that meets any of the following conditions will be qualified: a) The inspection item is unqualified:
! If one of the items is unqualified, the company will take the effective sample and conduct a comprehensive inspection. 6. 3.2 Unqualified conditions The following conditions are met to determine the enterprise as unqualified: one of the minor items is unqualified, and the general sample is subjected to technical inspection after the inspection: the item and the three major qualified, marking, packaging, transportation and storage 7.1 Marking The marking should include the following contents: Product: Manufacturer name; Series: 7.2 Packaging B PP-4-Ca 255--3-10 Production date. Manufacturers should specify product length: 1 meter (T). Product model, safety mark, and shortened number should be used. The following contents should be clearly marked on each part: product name; production certificate name, year of use; product length, in meters (m); implementation standard number.
During the transportation of combat equipment, scratches and pressure should be avoided. Purchased and stored
The assembled fabrics should be stored in a warehouse with suitable wind and cool weather: avoid direct exposure to large amounts of old and old materials, and the finished products should be at least m away from high heat. MT 960-2005
MT960-2005
4. 1 Specification
Appendix A
(Normative Appendix)
A, 1.1 The insulation materials and the insulation materials of the insulation materials shall comply with the provisions of M1=231995, A.1.2 The tensile strength of the wire shall not be less than 3930A.2 The tensile strength of a single wire shall reach the specified value
A.2.1 The test specimen of the test specimen shall be 5 m long with a pull-out length of 5>)11l. Before the test, the test piece shall be placed in an environment with a temperature of <23°C and humidity of 45%-75°C for more than 4 hours. A.2.2 Instruments and equipment A2.2.1 Tensile testing machine, note that the use shall be [closed, 1.2.2.7 Clamp: The degree of tension shall be 10 + 10 mm/min. During the stretching process, the test piece shall be changed, and there shall be no force or interruption. A.2.3 Fixed step wing A, 2.3.1 The test F screen shall be (23-2) times, and the degree of tension shall be 45%-75 times. .2.3.2 Hold the two ends of the sample larger than the two ends of the force testing machine to the top: the longitudinal center load of the sample shall be in line with the whole line direction. , 2.3.3 The starting standard is 100mm. The tensile speed is (10=5)um/m, and the single-wire breaking force of the sample is recorded. A.2.3.4 If the test piece slips or shears at the end, the test piece should be reversed and another sample should be taken to repeat the test. A.2.4 Result expression
Record the single-wire breaking force of each piece. Calculate the arithmetic mean of the single-wire breaking force of the S-piece sample and the calculated result rounded to an integer. 6
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