At times certain substances such as dirt, paint or cement can fall and stick on your clean surfaces. Such substances have the capability of defacing your surfaces, which leaves undesirable effects. For instance, if paint falls on your floor, it would leave a colour that is not pleasing at all. A scraper is a device which is used in taking care of such unwanted matter on your surfaces. The tools come with a sharpened blade as well as a wooden or plastic handle which the user holds while scraping.
The various types of scrapers available in the market include the flat blade scrapers, triangular scrapers as well as curved scrapers. The most special part about a scraper is the blade, as this is what people use to get rid of the unwanted matter on surfaces. The materials used in the manufacturing of scraper blades include the tungsten carbide as well as the high-speed steel compounds.
Tungsten Carbide Scrapers
Scraper blades made from tungsten carbide are made of a mixture of 50% carbon as well as 50% tungsten. The compound is formed through various methods each intended to bring out its purest form. The most common method which is used to form tungsten carbide is reacting the carbon as well as the tungsten metal at high temperatures between 1400 – 2000 degrees Celsius. One of the reasons as to why the tungsten carbide is used in the manufacturing of scrapers is because as a compound, it is tough therefore making it capable of scraping any challenging surfaces. They also can withstand the high temperatures which come from the friction caused during scraping. These properties allow the tungsten carbide scrapers to work without the fear of wearing out.
High-speed Steel Scrapers (HSS)
The High-Speed Steel Scrapers are made of an alloy which combines both iron and carbon to form steel. This is also achieved through the addition of other elements such as molybdenum, tungsten, cobalt, vanadium as well as chromium. In the making of high-speed steel scrapers, the elements other than steel make up at most 20% of the components structure. The created compound still has to undergo both heat treatment as well as tempering to make it strong. The name High-Speed Steel scraper originates from the point that it has the possibility of scraping through materials faster than high carbon steel. The compound has also greater hardness as well as abrasion-resistance which make it effective during scraping.Share