Inspection box
- Product Description
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Square boxes are used to check or scribe lines at any angle on precision workpieces. Various specifications and equal-height square boxes, rectangular tubes, and T-slot square boxes can be manufactured according to user requirements. Square boxes are manufactured according to JB/T3411.56-99 standard, using HT200 material, for checking and scribing the parallelism and perpendicularity of parts. Universal square boxes are used to check or scribe lines at any angle on precision workpieces. Various specifications and equal-height square boxes and rectangular tubes can be manufactured according to user requirements.
Cast iron square boxes are mainly used to support workpieces when checking and scribing the parallelism and perpendicularity of parts. They are generally cubes or rectangular parallelepipeds with equal side lengths. Various specifications and equal-height square boxes and rectangular tubes can be manufactured according to user requirements.
Main Uses: Square boxes are mainly used for checking and scribing the parallelism, perpendicularity, etc., of parts. A square box is a cubic cavity made of cast iron with six working surfaces, one of which has a V-shaped groove.
Environmental Conditions for Square Box Inspection: Normal temperature and humidity.
Requirements: The working surfaces of the square box must be free of rust, scratches, cracks, dents, and other defects that affect the metrological performance. Non-working surfaces should be sandblasted and painted, with chamfered edges. The inner wall of the square box should have a nameplate indicating the specifications, dimensions, grade, factory number, and manufacturer's name.
Accuracy: Generally divided into three grades: Grade 1, Grade 2, and Grade 3.
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