After the production of quartz crucibles is completed, it is necessary to conduct very strict inspection work to avoid problems with the crucibles that cannot be used. When inspecting the crucible, it is necessary to strictly follow the correct operating procedures, otherwise it may lead to missed inspections. Let's learn together how the correct inspection process is carried out.
Check the environment: Class 1000 cleanroom, with strict control over temperature, humidity, pressure difference, etc.
Inspection tools: LED rechargeable handheld light, inspection desk lamp.
Preparation before inspection: Wear protective equipment.
Inspection process:
1： After the quartz crucible is dried, check the outer surface of the crucible for foreign objects, cracks, open bubbles, and other conditions,
2： Check the crucible port for any gaps, foreign objects, knife marks, poor edge margins, etc.
3： Carefully inspect the inner surface of the crucible.
1. Use a desk lamp to illuminate the inner surface of the crucible, carefully inspect the inner wall and bottom, and confirm whether there are bubbles, black spots, white spots, scratches, foreign objects, attachments, etc.
2. Use an LED handheld light to vertically illuminate the inner wall of the quartz crucible, slowly rotate the crucible, and carefully inspect for any missing or undetected defects.
4： After the inspection is completed and deemed qualified, use PE film and PE bag vacuum packaging.
Therefore, in order to ensure the accuracy of quartz crucible inspection results, detailed inspections of the required inspection environment, inspection tools, etc. should be carried out to avoid problems with the required environment and tools that may affect the inspection results of the crucible. At the same time, be even more careful when packaging the crucible after inspection to avoid packaging errors that may cause damage to the crucible.