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Transparent quartz glass appliance

From;    Author:Stand originally
This standard applies to a lab to use transparent quartz glass appliance. Transparent quartz glass appliance has QSQ to enrage refine transparent quartz glass appliance and DSQ report frit are transparent quartz glass appliance two kinds. One, the technology asks 1. Index of physics, chemical function (1) total content of element of main impurity of chemical composition QSQ, DSQ and cent content set limit to are inphase answering QTS2, DTS1. (2) thermal stability sample lays a test 3 times to leap of 20 ℃ temperature in 1100 ℃ , do not produce crackle, (3) fight crystallization sex A. Sample of transparent quartz glass appliance is in QSQ gas refine below 1200 ℃ temperature, constant temperature half hours, do not allow occurrence diameter to be more than the crystallization white spot of 3 millimeter, 0. The crystallization white spot of 3 millimeter of 5  ̄ , every 100 square centimeter must not exceed 10. B. Sample of transparent quartz glass appliance is in DSQ report frit below 1200 ℃ temperature, constant temperature half hours, when 500 bicron wavelengh is passed through, transmitance is not gotten under 85 % . (4) sample of DSQ of high temperature discolouration falls in 1100 ℃ temperature. Constant temperature 1 hour, must not become angry. 2. Exterior index (1) transparent quartz glass appliance presses QSQ gas refine bleb divide into equal parts 2 class (see a table 1) . Diameter of gas of just a little of the level that express 1 (millimeter) 0.7 bubble of  ̄ of 0.1  ̄ 0.5 0.3 allow an amount (/ centimeter 2) 6 gas filiform grows 4 ≤ of ≤ diameter (millimeter) 7 bubble of  ̄ of 0.5  ̄ 3.0 1.0 nod shape diameter (millimeter)  ̄ of 0.3  ̄ 2.0 0.5 allows 3 groups. Express lubricious filiform of 2 level just a little to grow way (millimeter)  ̄ of 0.1  ̄ 1.0 0.2 1.5 bits of shape diameters (millimeter) 0.5 spot of  ̄ of 0.1  ̄ 0.3 0.2 allow number (/ 100 centimeters 2) 4 kinds of lines do not allow 2 ≤ of ≤ allow translucence of a blue line cloud and mist not: The blue line width that seconds allows must not be more than 0.3 millimeter. The blue line length under 500 milliliter must not be more than 30 millimeter; Of 600 milliliter above must not be more than 50 millimeter (the blue line under 10 millimeter not plan) . Express 3 project 1000 index of  ̄ of 500 600 of  ̄ of 50  ̄ 200 250 capacity of just a little of just a little of level just a little (milliliter) gas line (bubble) long (millimeter) 1 of  ̄ of 1  ̄ 5 1

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