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Basic knowledge of metal commemorative coins

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      Under normal circumstances, gold is more resistant to corrosion than silver; silver is more resistant to corrosion than copper; metals such as zinc, aluminum and iron are more susceptible to corrosion. For alloys, sometimes depending on the chemically active metal, such as pure gold, the stability is better, and when copper is added to the gold to form an alloy, black spots tend to appear on the coins.   But brass (copper-zinc alloy) is more resistant to corrosion in the atmosphere than pure copper. Polyvinyl chloride is harmful to coins in packaging materials. Water vapor, sulfide and carbon dioxide in the air are also very harmful to coins. For example, sulfur reacts with silver to form silver sulfide, which makes the surface of silver coins gray and black. The moisture in the air also accelerates the oxidation process of the coin. During the appreciation process, the bare coin is touched by hand, so that the sweat marks leave a fingerprint on the coin, and the ...

The Simple Introduction Of The Metal Badge

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Metal badge belongs to one of the badges(signs). The main badge are contain Copper Badge, Iron Badge, Zinc Alloy Badge and so on. The material is decided by the process.  Zinc Alloy Fish Skeleton badge Customized  1.If the process is stamping, the material is generally copper, iron, etc.   2.If the process is corrosion, it can be divided Copper Corrosion, Iron Corrosion, Stainless Steel Corrosion, Stainless Iron Corrosion, etc.   3.The printing process is generally copper, stainless steel, stainless iron. Because the printing process materials will be thinner.  4.Die casting process is generally zinc alloy, aluminum alloy, low temperature alloy mostly. Because the liquid is solidified by high temperature, it can be used as a relatively complicated pattern and a 3D stereoscopic effect. The surface of the badge can be plated with gold, ancient gold, ancient silver, nickel and other plating effects. It has the characteristics of simple an...

Do you how many kinds of the Metal Key Chain have?

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I believe that many people have used key chains and many people have seen them. There are many types of key chains used. The small series is divided into the following types according to their different materials and uses: 1. PVC Soft Key chain: Strong shape. Can be customized according to the size and shape you want. The mold opening fee is generally not too expensive. This kind is sales most in the jewelry store. But the surface colors easy to become dull. 2. Acrylic Key chain: Acrylic also called plexiglass. It have imported materials and domestic materials, hollow and solid. It is transparent. You can put colored paper in the middle. The hardness of the acrylic determines the degree of wear of the key fob. At present, acrylic surfaces below 3H are easy to spend. 3. Zinc Alloy Key chain : Zinc alloys are also one of the more malleable metals. Generally, the surface is rust-proofed by dripping or plating with rare metals. Brands Logo KeyCchain...

Will the book bulge after we used the metal bookmark?

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Will the book bulge after we used the metal bookmark? Many friends have such questions when buying metal bookmarks that don’t know if the book will be bulged or the book will be broken after using the metal bookmark. Let's take a look at it together with Yiyang edit. In fact, it does not cause bad books  when we use metal bookmarks for marking.  If you don't squeeze the book with metal bookmarks into the bookshelf, there will be no problem. 13cm school logo bookmark customized Of course, when using metal bookmarks, don't put a thick book, or you may get a book bulge after you have clipped it. Hangzhou Yiyang Metal Products Co., Ltd. f ocus on crafts OEM/ODM. Our main business are custom making Metal Badge, Metal Coin, Metal Bookmark , Metal Key Chain, Metal Bottle Opener, Tie Clip, Cuff, Brooch, Metal Medal, Metal Fridge Magnet.

Zinc Alloy Has Several Features That Are Suitable For Custom Metal Medal.

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Zinc alloy is the best material for die-cast metal medal. Zinc alloy has several features that are suitable for custom metal medal. Zinc alloy is suitable for making 3D medal and double sides commemorative coin. 8cm Creativity Games Medal Name: 8cm Creativity Games Medal Size: 8 cm Weight: 100 g Material: Zinc Alloy Process: Die Casting + Electronic Plating + Painting Application: Variety of Sports Souvenir;Variety of Event Souvenir;etc. MOQ: no moq Package: Opp bag unit piece Yiyang is a professional manufacture of Zinc Alloy Sports Medal in China.

Badminton Sport Medal

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The metal medal used for commend the champion with badminton sports. We also can custom other sports medal such as Ping Pang, Football, Basketball, etc. Only you have the requirement. The following is the Badminton Medal custom by one of our customer. 80g Zinc Alloy Games Medals Name: 80g Zinc Alloy Games Medals Size: 6.5 cm Weight: 80 g Material: Zinc Alloy Process: Die Casting + Electronic Plating Application: Variety of Sports Souvenir;Variety of Event Souvenir;etc. MOQ: no moq Package: Opp bag unit piece Promotions: We have preferential policy about refund mold cost and sample cost.

Did you know the application of the Metal Coin?

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Did you know the application of the Metal Coin? The metal coin can used in many fields such as the following description:  1. The company appear on the market: Issue commemorative coins to commemorate the company’s glory moment;   2. New store establishment: Give commemorative coins to customers to promotion the store brand.  3. Alumni Association Memorial  4. School Anniversary  5. Game Memorial  6. Star Memorial  ....... The following is one kind of our custom coin which is used for The Company Appear On The Market.   Name : Custom Coin For Appear On The Market   Size : 4 cm   Material : Copper   Process : Hydraulic Pressure + Electronic Plating   Application : Variety of Appear On The Market Souvenir;Variety of Event Souvenir;etc.   MOQ : no moq   Package : Acrylic Box   Promotions : We have preferential policy about refund mold cost and sample cost. Custom Coin For Appea...