Tài liệu Particle size test docx

TIGER DRYLAC Quality Control Test instruction Particle size test PA 09 1. Purpose / Target: It is to be determined with this test whether the particle size distribution of the powder permits a correct processing. 2. Description of the procedure: 2.1) Testing sets: CILAS Granulometer 920 with software wetting liquid (tap water with approx. 5 % detergent) 2.2) Execution 2.2.1) Manual operation Of the taken powder sample little powder is mixed with wetting liquid. At the CILAS device a zero value measurement is executed (<F1>). Input of the test parameters (<F2>) (Exit : <Esc>) : Sample designation: Machine and separator adjustment Production number: Product number File name: Batch number Now the measurement is started (<F3>) and after request the sample is put into the water tank (+ <Esc>). After termination of the measurement the rinsing cycle is started (<F4>). The results of measurement are documented by printout of the data. This printout is attached to the manufacturing prescription. (<F10> [file] [end] [printing] [standard- printing]) After printing press <M> <J> <Enter> <Enter> to get back to the starting-screen. 2.2.2) Automatic operation Of the taken powder sample little powder is mixed with wetting liquid. From the standard screen one arrives over the key sequence <F7> <Esc> <Esc> <F5> to the input mask for the test parameters. Input: Sample designation: Machine and separator adjustment Production number: Product number File name: Batch number After exiting the input mask the measurement is released automatically, the sample is expected to be put into the water tank. (display message). After termination of the measurement the result printout is released, and the device is prepared for the next measurement. 2.3) Analysis The measured values with given the grain size are compared with the pre-set values. Standard default values : - Normal powders : 25 - 40 % smaller 32 µm - DISC- powders : 40 - 50 % smaller 32 µm These values apply to normal productions, deviations from it are noted at the prescription. Approved by: Ing. M. Mathe Issue date April 95 Update status 01 Folder - Nr HQ 03 - 18 page 1/1 . Quality Control Test instruction Particle size test PA 09 1. Purpose / Target: It is to be determined with this test whether the particle size distribution. powder permits a correct processing. 2. Description of the procedure: 2.1) Testing sets: CILAS Granulometer 920 with software wetting liquid (tap water