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Bench scraper is the primary tool for scraping, due to the different shape of the workpiece, so blade has a different shape, generally divided into flat-blade and two types of alloy blade at the end.

1, bench scraper: plane used for scraping and scratching, scraping the long blade is divided into two types: flat and triangular blade of the blade.

2, bench scraper: used for scraping surfaces, common three-square scraper, snakeheads and willow leaf blade of the blade.

Bench scraper is a scraping tool, commonly used for finishing of the sliding of sliding bearing, cast iron plate platform, scraping scraping tools: a cast iron plate scraping tool 1, blade is cast iron plate (cast iron), major scraping tools. It is divided into planes and surfaces of the blade blade. Flat scraper plane for scraping or scratching; surface scraper, main scraping bushings, bearings and other surface. Surface scraper are commonly used: triangular scraper, snakeheads and willow leaf blade, the blade. 2, calibration tool which is used to grind the Institute and check the accuracy of scraped surface, commonly used with calibration plate, calibrated rulers, angle ruler and a dedicated calibration plate, and so on.

Second, the fitter blade sharpening 1) blade on the wheel for rough grinding, scraping on the top wheel for rough grinding, blade to the edge of the wheel at the top, and move around smoothly. Grinding when Regrinding the blade surface and sides. Sharpening often water cooled to prevent edge annealing. After rough grinding fine grinding with whetstone. The specific method is: first with a layer of oil on the stone, and then make the blade perpendicular to the stone surface, mill end, rear surface, which alternate between grinding on both sides, until requirement is met. 2) coarse grinding surface scraper slightly against the edge with one hand on the wheel, and with the other hand to make the blade wobble and move around the wheel. Fine grinding stone with oil on top of the blade in a straight and circular movements.

When the surface is hard, can be welded HSS or carbide cutter head. Common flat-blade and the elbow straight scraper blade in two ways.

Flat blade grinding methods: flat scraper blade to keep sharp, should always wear. First electric wheel for rough grinding on, top shelf in hardened blade grinding wheel flange on the wheel smoothly move around the end face grinding of blade flat, then plane along the side of the grinding wheel on both sides of the blade moves back and forth to slick.

Grinding coarse grinding on the blade, blade leaving tiny dents or burrs must be fine oil stone. First stone coated with diesel or kerosene oil, made with the blade perpendicular to the stone surface, blade front split single double edged sharpening angle is greater than 90 degrees and flat on both sides and end to alternating ground, equip a sharp edge as well.