OEM ASTM D130 Polishing Vise of Copper Strips Corrosiveness Test Bomb

Multi Strips Polishing Vise
Model: BJM


       Multi-Strips Polishing Vise is conforming to GB/T 5096<Copper corrosion test method of petroleum products> and ASTM D 130<Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test>, In grinding copper strips, play a clamping role and does not damage the copper strips.

Keywords:
ASTM D130 Multi-Strips Polishing Vise, Laboratory Copper Strip Corrosion Test Polishing Vise for 5 pcs Strips

       Multi-Strips Polishing Vise is conforming to GB/T 5096<Copper corrosion test method of petroleum products> and ASTM D 130<Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test>, In grinding copper strips, play a clamping role and does not damage the copper strips.
 

Keywords:
ASTM D130 Multi-Strips Polishing Vise, Laboratory Copper Strip Corrosion Test Polishing Vise for 5 pcs Strips

Preparation of standard corrosion test pieces

1. Surface preparation

In order to effectively achieve the expected results, it is necessary to first remove the defects on the six faces of the copper sheet using silicon carbide or alumina (corundum) sandpaper (or cloth). Treat with 65 microns (240 grit) of silicon carbide or alumina (corundum) sandpaper (or cloth) to remove any grinding marks left by other grades of sandpaper before this. After wiping off the metal shavings on the copper strip with a quantitative filter paper, immerse the copper strip in a washing solvent. After removing the copper sheet from the washing solvent, it can be directly polished or stored in the washing solvent for future use.

The operation steps for surface preparation: Place a piece of sandpaper on a flat surface, wet the sandpaper with kerosene or washing solvent, and rotate the copper sheet to rub against the sandpaper. Use ashless filter paper or clamps to prevent contact between the copper sheet and fingers. Another method is to use dry sandpaper (or cloth) with appropriate particle size to install on the motor and drive the motor to process the surface of the copper sheet.



2. Test piece polishing

Remove the copper strip from the washing solvent and use ashless filter paper to protect your fingers to grip the copper strip. Take some 105 micron (150 mesh) silicon carbide or aluminum oxide (corundum) sand particles on the glass plate, wet them with 1 drop of washing solvent, and dip a piece of Cotton wool in the sand particles. Use stainless steel tweezers to hold the copper sheet, never touch your fingers. First rub each end of the copper sheet, then clamp the copper sheet on the clamp, and polish the main surface with silicon carbide or aluminum oxide (corundum) sand particles dipped on the Cotton wool. When grinding, it is necessary to follow the long axis direction of the copper sheet and make the stroke extend beyond the end of the copper sheet before returning to grinding. Rub the copper plate vigorously with a clean Cotton wool to remove all metal chips until no stain is left when wiping with a new Cotton wool. After the copper strip is wiped clean, immediately immerse it in the prepared sample.

In order to obtain a uniform corrosion color copper sheet, it is important to evenly etch all surfaces of the copper sheet. If there is wear on the edges (with an elliptical surface), the degree of corrosion in these areas mostly appears much more severe than in the middle of the test piece. The use of pliers will help polish the surface of the copper sheet.



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