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Glossary: alloys

MASTER ALLOY: an alloy produced in drop form that must be added to the fine metal (gold, silver or other precious metals) for the production of jewelry at title.  

Gold and silver, used as pure metals, do not allow to obtain jewels that stand up under wear and tear, or which have a high level of mechanical resistance or easy processing. Master alloys are the answer to specific and increasingly complex productive requirements. The term master alloy is understood as a particular category of non-ferrous alloy (metallic materials made up of several metals), primarily of copper, silver, nickel and zinc. The right master alloy, containing grain refiners and deoxidizers, improves the characteristics of a jewel, such as colour, hardness, mechanical resistance, processability and resistance to oxidation. The variety of these parameters justifies the large number of formulations available in the Legor Group range of products. This translates into an obvious advantage from the operational point of view and to optimisation of the final product.

READY-TO-USE ALLOY

An alloy at title that allows, without further addition of precious metals, the hallmarking of a final product in the legal title requested by the customer.

PRE-MASTER ALLOY

A kind of master alloy for gold, that contains deoxidizers and grain ry.efiners but that has to be completed with gold and silver in order to proceed to production of jewelry.

Other topics

  Glossary: alloys MASTER ALLOY: an alloy produced in drop form that must be added to the fine metal (gold, silver or other precious metals) for the production of jewelry at title.   Gold and silver, used as pure metals, do not allow to obtain jewels that stand up under wear and tear,...

  ALLOYS: PRODUCTION PROCESSES Alloys for casting Compositions characterized by an improved performance on:• metal flowability in liquid phase • increase of filling on complex shapes,• optimization of scraps reusage without problems,• minimization of solidification shrinkage. Legor...

  AN ALLOY’S IDENTITY DOCUMENT Physical characteristics TITLE The quantity (in weight) of precious metal present in the final alloy, expressed as per thousand parts or carats. The characterization of an alloy is performed in dedicated title, since the ratio between metal and master...

Introduction: the galvanic process After a short introduction on the basic principles of the galvanic process, this work will focus on the aspects that feature in a good quality galvanic plate: respecting the characteristics of the plating bath parameters, of the chemistry of the electrolyte...

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  Technical requirements for the application of the optional assay mark Certification of conformity and hallmarks of the product(DPR 4 August 2015 no.168) Introduction As defined in art. 34, comma 5 of DPR no. 168, 4 August 2015, the company can request a test of the conformity of...

  ALLOYS: PRODUCTION PROCESSES Alloys for casting Compositions characterized by an improved performance on:• metal flowability in liquid phase • increase of filling on complex shapes,• optimization of scraps reusage without problems,• minimization of solidification shrinkage. Legor...

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