phenolic paper tube around the wire (the aboriginal ZB Q23003-1987) Definition: wire-wrapped tube of insulating paper and phenolic resin. This standard applies to high-speed glass-li fiber industry with the drawing tube around the wire.
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technical requirements as test means descriptions related content inspection rules for production specifications should be invariable with normal tube around the wire 1 invested, if I were you, special specifications admitted above along both parties. Technical Requirements 3.1 Appearance quality of the outer surface smooth and wash, does not allow any foaming, the impacts of end-use of short wafered ridge there. 3.2 Physical properties of wire-wrapped tube mechanized Pok physical and mechanical properties and performance of the bund shall meet the following requirements: Item Unit Index 2.0 and beneath water absorption% and 1.22 ~ 1.32 proportion of acetone-resistant properties of no significant alteration [?] Performance is no resistance apt boiling water meaningful changes [?] Central apt the compressive strength of MP a (kgf / cm [2]) 88 or extra (900 extra) high-rpm performance,9923.org, No signs of the appearance of test methods in 4.1 lit office, take the 30cm by the front of the sample rotation set to the naked eye. Measuring 4.2 feet inches 4.2.1: sub-scale of 1mm, a width of 30cm iron feet; OD special card rules. 4.2.2 Test procedure: amount around the wire with steel tube feet tall, special card rules to amount the diameter of the barrel around the wire. 4.3 Water absorption test equipment 4.3.1 4.2.3 4.3.2 water container dryer. 4.3.2 Test procedure 4.3.2.1 placed in the specimen fraught with desiccant dryers, the consequences of pre-2h later namely, accurate to 1g. 4.3.2.2 specimens inundated in water at chamber temperature, 24 ± 1h wipe the surface with filter paper to clear water droplets, and then weighed to the nearest 1g; among the weighing is completed in 3min. 4.3.3 Calculation W2 - W1 A =--------- × 100 W1 where: A - water digestion,%; W1 - specimen pretreatment, water quality ahead, g; W2 - the specimen after immersion 24 ± 1h quality, g; every specimen test results to the arithmetic mean worth, catching 2 premonitory digits. The proportion of test equipment 4.4.1 4.4 4.4.1.1 equilibrium, a sense of volume of 1g. 4.4.1.2 containers namely clutch water. 4.4.1.3 svelte wire. 4.4.2 Test program the specimen aboard the scale cried in wind quality, precise to 1g; slender metal wire and then tie an end of the specimen suspended in water by room temperature (note: the specimen ought be completely submerged in water, surface should be no bubbles), wire tied the additional end of the scale, constantly hanging in the specimen, said no significant change refers to significant deformation, swelling (blister), cracks, color and so above. Warm water hunk, exact to 1g. Then clear the specimen, said the hanging wire at room temperature, water quality, accurate to 1g. 4.4.3 calculation of W d = ------------- - W - W1 + W2 where: d - weight; W - specimen in climate quality, g; W1 - hanging wire specimen with the quality of water at room temperature, g; W2 - thin wire suspension at room temperature, water quality, g. Each specimen test results to the arithmetic mean value, taking three significant digits. Acetone-resistant representation test 4.5 4.5.1 4.5.1.1 Test equipment corrosion-resistant vessel of acetone. 4.5.1.2 Industrial acetone. 4.5.2 Test program the specimen inundated in acetone removed after 2h, with a filter paper to the surface of acetone, touch and scrutinize the changes in advent. 4.6 Performance 4.6.1 boiling water resistance test equipment: heating equipment and containers. 4.6.2 Test procedure the specimen immersed in boiling water, 10min after the removal, water droplets to the surface with filter paper, touch and observe the changes in appearance. 4.7.1 Central to the compressive strength of 4.7 and specimens 4.7.1.1 test equipment devoted to the pressure panel ring. 4.7.1.2 10t global testing machine. 4.7.1.3 barrel blanks were cut from the specimen, feet-inch should be specified. 4.7.2 Test procedure 4.7.2.1 the specimen into the special ring to the oppression panel, so that an end of the specimen smooth aboard the pressure panel side. 4.7.2.2 the special ring to the pressure plate mounted on universal testing machine, compression testing and record the harm to the load. 4.7.3 Calculation σCB = ---------- 2 (b × c) where: σCB - compressive strength, Pa (kgf / cm [2]; P - specimen failure load, N (kgf); b - specimen width, mm; c - specimen thickness,7811.org, mm. test results to the arithmetic mean of each specimen, said to take 3 significant diagrams. 4.8 4.8 high-rpm performance .1 test equipment: corner digit namely greater than 11000r/min the painting pate, and the room is equipped with a safety apparatus. 4.8.2 Test procedure: the specimen mounted in the wire painting machine head, then open the door, the gate begin switch. 5min Close the switch, remove the specimen as detection. inspection rules should be 5.1 inch by foot appearance quality inspection merely 5.2 water absorption, specific gravity, ring to the compressive strength, resistance to acetone properties, resistance to boiling water performance, high-rpm performance of 6 for customary test in which high-rpm performance, only one batch per 1,000, the other five 5000 1 batch. water absorption, compressive strength of the hoop, high-rpm performance, as every batch of specimens collected 5; proportion of acetone-resistant performance , boiling water resistance performance as each batch of specimens collected 10 5.3 Acceptance test base a failure, apply afresh and again to double the test specimen, such for still unfavorable, then the production is substandard products which, high rpm test failure is no longer re-examination. 6.1 marks per case related content should be marked: the creation unit, production appoint, batch digit, quantity, production appointment, and factory inspection and certification trademarks. 6.2 packaging with cartons, which half mantled with paper, put on the white box. 6.3 transport boxes should be flat, transportation to prevent rain and mechanical harm. 6.4 indoor dry arsenal location. Additional information: The standard glass-li fibers from the Nanjing Research Institute made li glass fiber along the Nanjing Research and Design Institute Technology sweep the jaws. This standard insulation materials factory in Nanjing is responsible for drafting this Standard was charted by Tang Yonghua, Shi Shunxing. Open Category: Building Materials
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