melting of the basemetal. the liquidus, or melting point, is the lowest temperature at which a metal or an alloy is completely liquid, and the solidus is the highest temperature at which a metal or an alloy is completely solid. brazing is characterized by the distribution of a brazing filler metal...
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(keystone) venezuela's opposition leader juan guaido has urged switzerland to crack down on illegal gold mining in the amazon. speaking at the world economic forum in davos on thursday, he accused those who purchase the preciousmetalof financing a "criminal conglomerate" and armed groups. he claims...
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conventional abrasive materials. learn more overview information chart glossary natural diamond natural abrasive is a hard material found in the earth and is used to shape other materials by grinding or abrading. natural abrasives are extremely commonplace and are used very extensively in a wide variety of...