Some standard content:
Classification number G33
Light Industry Industry Standard of the People's Republic of China
QB/T3632-1999
Polyvinyl chloride heat shrinkable film and sleeve
Published on April 21, 1999
State Bureau of Light Industry
Implemented on April 21, 1999
QB/T3632—1999
This standard is the original professional standard ZD/TG33109-1989 Polyvinyl chloride heat shrinkable film and sleeve 3, which was converted to QB3632-1999 after being issued by the Light Industry Bureau [1999] 112. The internal conversion remains unchanged. This standard is in accordance with ASTMD31S0-8I Cross-linked and cross-linked PVC heat shrinkable sleeves for electrical pipe edges and ASTM132671-85 Standard test method for heat shrinking potential change for electrical appliances3. This standard was proposed by the National Bureau of Industry and Commerce. This standard is under the jurisdiction of the Plastic Products Standardization Center. This standard was jointly developed by Shanghai Plastic Products Industry Research Center, Zhengzhou Plastics Science and Technology Co., Ltd., Shenyang Plastics Factory, Quanzhou Plastics Factory, Xiamen Zhongsu Plastics Co., Ltd., Anxinxi Plastics Co., Ltd., and Shibao Wanjin Plastic Products Co., Ltd. The main leaders of this standard are: Zheng Dongming, Xu Biaocheng, Zhong Fanghua, Bu Rongbao, Shu Fuhua: This standard is implemented by the Ministry of Light Industry, and replaces the original light professional standard ZB/TG33009-189 issued by the Ministry of Light Industry.
Light Industry Standard of the People's Republic of China
Polyurethane heat shrinkable film and tube
1 Content and scope of use
QB3632-1999
Part Z8/TG33009-1989
This standard specifies the technical requirements, test methods, inspection and testing of polyurethane heat shrinkable tubes (hereinafter referred to as heat shrinkable film and tubes).
This standard is applicable to heat shrinkable films and tapes made of polyvinyl chloride resin, plasticizers and various paint additives, which are formed by foaming. This product has the special function of being absorbed by heat and can be used for electrical appliances, external insulation packaging, general goods packaging and effective food packaging.
2 Reference standards
C104 Test method for special plastics
E【40 yuan solid electrical insulation material breakdown voltage, breakdown strength and withstand voltage test method GE1310 Solid electrical insulation material whole body, volume resistivity and surface conductivity test method GB103 Plastic water test method
HG:-167 Plastic gradual strength test method
Japan 2411 Transmittance and haze test method for transparent plastics (calendered end for food packaging)
3 Product packaging
5.7 According to the application scope, it can be divided into three categories:
, Type D - for short-term packaging of electronic components, Type bY - for general article packaging,
F, Type D for tensile food packaging.
3.2 When the folding diameter is greater than or equal to 16, it is called heat shrink film (tube heat shrink film); when the folding diameter is less than 1, it is called heat shrink tubing (commercially known as heat duct). Technical requirements
4.7 Specifications and clinical pressures shall comply with Table 1, with changes. Approved by the State Bureau of Light Industry on April 21, 1999
Implementation on April 21, 1999
>18~34
267~106
>108~135
,70,09
>0.09-p,12
>0,12~0.14
QB/ T3632—1999
Type specifications and deviations
±0,012
+D,p26
Table 2Y type, 5 type specifications and deviations
15~-110
>110-200
>2m-a50
>0,030.06
2-0, 05 ~ 0. 07
>0,0-0,10
20,t0~0.14
>0,14-0,28
>0.18~0.22
±0,003
±0,024
+ z, 0
±o,015
= 0,020
±0_030
±1, F
±0,010
+0,020
0,080
combination product
±0,025
±0,030
up to 2,5
±s, 0
±0,015
±0,020
± 0, 034
4.2 The appearance should meet the requirements of Table 3.
Air Science, Li Kong, this crack
Eggplant point, position medicine,
Color point, quality
QD/T3682—1999
Good plasticization, no "mark"
and "pattern"
No obvious "water load"
No obvious product material (hanging material
Flat tearing is not recommended for establishment level )
is not allowed to have
no embedded cloth
filling parts have two policies to recruit public welfare
is not allowed to have
o,3 class a, small
is allowed, equal to less than
0mm, the collection degree will be
100mm100mm
the original area shall not be chaotic
the nearest diameter is equal to 2||t When the misalignment is less than or equal to 200, the lead position is less than or equal to 4mm. The roll surface is flat, the sitting roll has no finger and the lifting tendon is allowed to have one broken head per roll, and the heat-resistant pipe broken head is not flat, and the heat-resistant pipe is close to the head. The recovery rate is 4.3 Technical deviation should meet the requirements of 4, the order exists, the imitation each
shall not exceed the public welfare 50, the
shall not exceed the light 2 for
greater than 0,3mm: no filling
, equal to less than,
, the dispersion shall not exceed the daily problem
within 10 increase by ×
, the folding diameter shall be less than or equal to 200mm ||t When the position is less than or equal to 8mm㎡, the folding diameter is greater than 200mm, the lead position is less than or equal to a slight difference and a non-special visit. Stop at the allowed end, and the length of each section is not less than. Heat the heads with chopsticks, and heat the shrinkage card at the head. ||No fat showing "water"
and "cloud"
hanging line (the two openings of the hanging line
cannot be wound in a straight line)
No filling
Allows the existence of two measures to block the public stem, but it cannot
exceed the public welfare, and the complete
does not exceed 3 of the folded diameter
large 0,9, not good
1 is greater than 0
, and the product cannot be super-selected in the product of 100mm×
100. When the product is less than the required
, the product is equal to
mm and greater than 2:0mm
, and the position is less than or equal to
in the four basic levels, one||t t||A lubrication and a disinfection product are allowed to have two broken ends, each section length is not less than 3, the heat-resistant ends are connected with tape, and the heat-resistant ends should be marked at the broken ends. Q9/T3632—1899 Note: The specific markings shall be specified in the drawings by the required party: The physical performance of the machine shall meet the requirements of Table 5 and Table 6. 4.4
Concentrated D type physical properties
Elongation (longitudinal)
Fixed axis reel
Ethylene glycol resistance
External electric strength seat
Spot electric limit car
Water wheel
Straight section
Attached variable low temperature performance
Tensile neck
Dielectric weakness
B5 flying hair
125 ground
Protective properties
Tensile strength
Crack elongation string
+A5,1nDO
Y type, S plastic machine according to the performance
war this index
also open
23201t
no crack
no surface
wash corrosion
branch to the corresponding standard
Serial number:
air wet ironWww.bzxZ.net
8/T3632-1999
Note: (when the folding diameter is less than 130, there is no transverse tensile strength, elongation at break and longitudinal strength at break index. ②The optical axis acceptance and low temperature multiplication of the two items are only used for the heat treatment of the packaging, such as the colorless product, 4,5 hygiene performance should meet Table 7 is required.
S type hygienic properties plug
Weight (% melt) calculated as Pb
Weight
20% alcohol
Acetate
Potassium peroxide lubricant
G5% ethyl acetate
Process soaking liquid (this, 20% ethanol,
% hyaluronic acid, n-hexane)
Oleic acid colorless grease
5 Test method
5.1 Specifications
5.1.1 Single thickness: measured by a pregnancy tester with a precision of 0.001 μm, with a precision of 0.001 μm. Technical indicators
>50, 0
No sweating
No cracking
5.1.2 Diameter: D type is measured with a 2mm tape ruler, accurate to 0.3 mm, Y type and S type are measured with a 0.5mm tape ruler, accurate to 0.5 mm. 5.2 Appearance
5,2,t Adhesion, cut the sample about 200mm long at the point - decide, store the sample and check the position with the horizontal finger and index finger 5.2.2 Other standards Under the light, make a visual inspection at a distance of 500mm from the sample. 5.3 Determination of compaction rate
5.3.1 Sample
QB/T3632-1998
When the folding diameter is greater than or equal to 100mm, take a single sample of 100m110m. When the folding diameter is less than 10m0, take the longer one. The test piece is a single piece.
5.3.2 Test method
Cut two lines in the weaving and transverse directions of each sample, and use a 0.5mm ruler to measure the length of the lines respectively. Then put the sample between small holes (715 mesh) metal mesh, but the metal mesh should not affect the shrinkage of the sample, and then put it in the test (try to make the sample as close as possible to the sample), 1mi away, take it out and cool it to a tight place, remove the metal mesh, and then measure the length of the sample or sample, calculate the results separately, and take the largest or smallest value of the sample or sample as the test result, rounding to two significant figures.
6.3.3 Calculation
The calculation is as follows:
Longitudinal to transverse shrinkage, %
9—
L.--The length before longitudinal or transverse shrinkage, mml--The length after longitudinal or transverse shrinkage, mm. 5.4 Determination of tensile strength and elongation at break 5.4.7 Test sample
Take 6 bell-shaped samples (see Figure 1)
5.4.2 Test state adjustment and environment
The test is carried out for not less than 1
b, test environment, humidity 23±20, and humidity 50%5%. 5.4.3 Test equipment
Use the equipment specified in Chapter 3 of GB1040. 5.4.4 Test method
Carry out according to the assumptions of GB1040 Section 4. The test state adjustment and environment are in accordance with this standard, 4.2 is optional, the test speed is 100mm/mim, and the distance between the marking plate and the marking plate is 25m. 5.4.5 Calculation according to Article 6, Article 18 and Article 19 of GB1040, take the average value of 5 samples, use legal measurement units, 5.5 Shaft shrinkage test 5.5.F Samples Any 160m long sample B section is obtained, 5.5.2 Mandrels A series of metal mandrels (made of brass or carbon fiber) are listed in Figures 2 and 3. X is the size of the smaller of the sample, A is the size of the sample, d is the size of the sample, >12-33 >33-186 5.5.3 Test method
X—Dimensions in Table 8:
X—Dimensions in Table 8
Mandrel dimensions
Put the sample on the mandrel and place it in a 135±1℃ air drying oven for 30m. Let the sample shrink and wrap it on the mandrel. Cool it to room temperature. If there is any cracking, it is unqualified. If there is no tearing, a voltage test is also required to further check whether there is any small potential. The test method is as follows: use a thin film with a thickness of no more than 0.2mm to cover the disc shown in the figure. , use another same metal sheet and stick it on the surface of the sample in other parts. The contact must be good and the metal sheets are connected to each other: lead two electrodes from the metal sheet and the output pin, wait for the core shaft to be immersed in the transformer oil, and provide a transformer voltage of 500V. When the voltage is continuously opened to 2 sections, maintain 1 level. If there are small holes in the sample along the direction and position of the applied voltage, it is considered to be a breakdown. This can be judged by repeatedly applying the test voltage. 5.6 Test for resistance to Fe-Sa solvents
5.6.1 Test specimen
Cut 5 sections of the test specimen with a length of 200 mm at random and place them on a plate in a 135±1° air drying oven. After 15 min, take them out and lay them flat to cool to room temperature. Cut the test specimen into pieces according to the warp knife shown in Figure 1 in Article 6.4.1 of this standard. Take another 5 sections of the test specimen with a length of 150 mm at random and put them on a mandrel. Place them in a 135±1° air drying oven and keep the temperature constant for 30 min so that the test specimen is wrapped around the main shaft. 5.6.2 Mandrel
It is a metal mandrel (made of brass or carbon steel). When the inner diameter of the test specimen after self-shrinking is less than or equal to 25, a mandrel with a weight 10% larger than the diameter of the test specimen after free shrinkage and a length of 100 μm is selected. When the inner diameter of the test specimen after self-shrinking is greater than 26°, a mandrel is not required and the shrunk sheet can be used for selective testing of electrical properties. 5.6.3
Industrial ethylene glycol concentrate.
5.6.4 Test method
Place two groups of test pieces in a small amount of solvent, and make sure that the sample is completely immersed in the solvent and should not be in contact with each other. The temperature of the solvent drop is 36:2 for 24 hours. After taking out, return the sample surface to the filter paper to clean the solvent. Dry it at room temperature for 1 hour. The tensile strength of the shaped sample is measured according to Section 5.4 of this standard. The dielectric strength of the axial test sample or sheet sample is measured according to Section 5.7 of the standard.
5.7.1 Sample
Take 150 mm long sample pieces at random. 5.7.2 Mandrel
Same as Section 5.6.2 of this standard.
5.7.3 Test section inspection
Use the equipment specified in Section 6 of G140B. 5.7.4 The test voltage is continuously and evenly increased to 1000V/4 AC voltage. 5.7.5 Test method: Put the sample on the main auxiliary: put it in a 135 ℃ air drying oven, temperature 30℃, so that the ball sample can be wrapped on the core shaft, take it out and wait until it reaches room temperature (the sheet sample shrinks under the same conditions, but must be effectively cooled), use 26+0.1g, the original thickness of the metal sheet is not more than 0.12mm as the outer electrode, and surround the core shaft and the center of the sample. The state adjustment and ring ground are the same as those in Article 5.4.2 of this standard, and the time is not less than 24 hours. The circuit is configured, the core sample is as shown in Figure 4-7-1 of CB140, and the sheet sample is as shown in Figure 4-7-1 () of CB140B. The test medium is clean transformer oil. 5.7.B Calculation is carried out according to the provisions of Chapter 7 of ISO D1408. The average value of 3 sections of the sample is taken and the legal unit is adopted. The thickness is measured near the breakdown point, and the measurement is not less than 8 points. The arithmetic average is taken and the value is accurate to 0.1m. 5.8 Determination of body resistivity 5.1 Sample 150m long sample section is used. 5.8.2 Mandrel The same as Table 5, 6, 2 of this standard. 5.8.3 Test equipment QB/T36321999 adopts the equipment specified in CH141. 5.4 Test core 500V DC voltage.
5..5 Test electric excess
If the agricultural sheet is tested, the diameter of the straightening electric root shall be s±0.1m. Electrode configuration, mandrel specimen as shown in Figure 1-2 of GB1430, without protective electrode, sheet specimen as shown in Figure 9-1 of GB81410, without protective electrode,
5.,B Test force
Put the specimen on the mandrel, put it in a 135±1 wind oven, shrink the specimen by 30ml, take it out and cool it to room temperature (sheet test is carried out under the same conditions, but it must be placed flat to cool): use a metal sheet with a thickness of no more than 0.1% and a thickness of no more than 0.02m as the outer electrode, surround the center of the mandrel specimen surface for at least one circle and the environment is the same as that in Section 6.4.2 of this standard, and the time is not less than 24h. Test procedure: The 16th and 17th test steps of GB1410 shall be carried out as specified in the following sections. 5.8.7 Calculation: The calculation shall be carried out in accordance with the provisions of GB1410, Section 1, Section 20, Section 3 or Section 4 for the sample. The average value of the sample shall be taken and the unit of measurement shall be adopted. 5.8 Determination of water absorption: 5.9.1 Sample: When the folding diameter is greater than or equal to 25 mm, 8 single-piece samples of 100 mm × 25 mm shall be cut. When the folding diameter is less than 36 mm, 8 single-piece samples of 190 mm in length and the same folding diameter shall be cut. 5.8.2 Test method: The test shall be carried out in accordance with the provisions of GB10a4. 5.10 Determination of linearity: 5.10.1 Sample: 8 samples of 105 mm in length shall be taken. 5.10.2 Test method
As shown in the figure, one end of the sample is fixed, and the rest is laid freely and flat. Then a transparent organic glass is used to press on the sample. A 1000mm steel ruler is used as a reference. Pass through the two edges of the 30D0mm long sample (the edge of the sample must be extended). Then the maximum distance between the edges of the test sample and the ruler is the straightness. The unit is meter, with an accuracy of 0.6m. The largest one among the 8 samples is taken as the test result. 5.11 High temperature resistance test
5.11.1 Samples
The principle is that the sample can cover the wrapped article. Randomly select 10 samples. If the length of the wrapped article is greater than 150mm, it shall be selected as an article with a length of 150m.
5.11.2 Test equipment
QB/T3632—1999
A heat-conducting oven with a temperature controllable to -55°C. 5.11.3 Test method
Put the test piece on the corresponding specification of the packaged product or the metal object with the same specification as the packaged object, put it in a 136°C air drying oven, heat it carefully, put the sample on the product, cool it down in the air, put it in the oven again, control it at the required tolerance level, keep the temperature at 100%, take it out and cool it down to room temperature, put it in a low-temperature box at 55°C, keep the temperature for 3 hours, take it out and dry it at room temperature, and observe whether the sample has cracking phenomenon. 1
Direct load
Explosion control 2-w—Explosion Pa: 3-
5.12 Copper abrasion test
5,12.1 Sample
Shortening: 4--Organic ball plate,
Five plywood + 6-—Test strip, 7—Shop page: 8-Figure 3 Schematic diagram of high load measurement
Sweep the sample section with 15 long
5.12.2 Mandrel
Steel filling ruler.
is a set of metal mandrels, the true diameter of which is 10% larger than the true diameter of the tested sample after free contraction, the length is 100m, and the material is copper:
5.12.3 Test method
Place the sample on the mandrel, put it in a constant temperature box at 131°C to keep the sample wrapped on the mandrel, take it out and cool it to room temperature, place it in an environment of 23±2°C and relative humidity of 90%~95% for 34 hours, then take it out, put it in a drying oven at 136±2°C for 168 hours, and then place it in a drying oven at 2±237°C and relative humidity of 50%±2% for 4 hours, then remove the sample from the mandrel and observe whether the entire mandrel surface is corroded. Exclude the situation where the hard copper is blackened by air.
5.13 Determination of gradual cracking strength
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