I. Cleaning and Surface Maintenance Errors
Using strong acids or strong alkalis for scrubbing
Hydrochloacid, oxalic acid, and strong alkaline cleaners will corrode the granite surface, destroy the gloss, and even cause micro-cracks and powdering.
Using metal shovels oeel wool for hard scraping
This easily scratches precision surfaces, causing permanent scratches and affecting equipment accuracy.
Failing to clean oil stains, coolant, and cutting fluid for a long tiquid seeping into micro-pores causes localized expansion and color differences; in severe cases, it affects dimensional stability.
Rinsing with direct water immersion for a long time
Although granite is water-resistaater seeping into the interior changes stress; precision components are prone to slight deformation.
II. Installation and Leveling Errors
Direct hard knocking or heavy striking for leveling
Graniteittle; heavy strikes easily produce hidden cracks and chipped corners, which will gradually expand during later use.
Uneven force or suspension on leveling pads
Excessive local force causes stress coion, leading to cracking during long-term operation.
Ignoring the strength of the foundation floor
Floor subsidence or softness causes the base to deform, resulting in permanent loss of preon.
Forcibly tightening bolts
Over-tightening can crack the base’s threaded holes or the base itself.
III. Handling and Placement Errors
Lifting with single-point force, ing, or hard pulling
This easily causes breakage or chipped corners; precision surfaces cannot be repaired after bumps.
Placing directly on concrete floors or metal racks without cushioning
Hard coauses hidden damage and easily scratches the working surface.
Long-term placement under single-sided pressure or off-center loading
Causes slow creep deformation, affecting parallelism and perpendicularity.g or placing under heavy pressure
Granite has high compressive strength but low flexural strength; heavy pressure easily causes cracking.
IV. Usage and Environmental Maintenance Errors
Sudden temperare changes (hot to cold)
Such as directly rinsing hot workpieces with cold water or placing near high-temperature furnaces; thermal expansion and contraction easily cause cracking.
Long-term to sunlight or alternating humid environments
Causes color differences, weathering, and dimensional instability.
Neglecting regular precision re-measurement
Accumulated minor deformations affect equipment machinng accuracy; by the time it is discovered, the damage is severe.
Welding or cutting on the base at will
High temperatures cause localized explosion cracks, discoloration, andstruction of internal stresses.
V. Repair and Patching Errors
Repairing damage with ordinary cement or plaster
Inconsistent shrinkage rates cause secondary cracking, and precision cannot be rd.
Polishing precision working surfaces by oneself
Without professional equipment, flatness is destroyed, making the condition worse with each repair.
Simply gluing cracks with adhesive and continuing to usposes safety hazards, and precision has already been lost.
