News
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What are the types of casting machines
1、 Introduction A casting machine is an equipment used for manufacturing metal castings in industrial production. It can inject molten metal into the mold and obtain the desired casting shape through cooling and solidification processes. In the development process of casting machines, different ...Read more -
Precious metals markets diverged
Last week (November 20 to 24), the price trend of precious metals diverging, including spot silver and spot platinum prices continued to rise, and spot palladium prices oscillated at a low level. In terms of economic data, the preliminary U.S. manufacturing purchasing managers’ index (PMI)...Read more -
Classification method for jewelry processing equipment
It can be divided into: 1. Classified by function (1) Grinding machinery – equipment used for polishing and carving gemstones. (2) Edge cutting machine – a tool used to cut the edges of gemstones. (3) Embedding tool – a machine used to insert diamonds and other colored gemstones...Read more -
What are the jewelry processing equipment available?
(1) Polishing machinery: including various types of grinding wheel polishing machines and disc polishing electroplating machines. (2) Cleaning machinery (such as sandblasting): equipped with an ultrasonic cleaner; Jet air flow scrubber, etc. (3) Drying processing machinery: There are mainly two ...Read more -
The difference between forging and casting？
Forging is the process of processing low alloy steel ingots (billets) into rough parts with a certain shape and size using methods such as metal melting, rolling, or rolling. Castings are a general term for workpieces cast using sand molds or other methods; It is a product made mainly of various ...Read more -
What is the difference between Zuojin 999 and Zuojin 9999?
Zujin 999 and Zujin 9999 are two different purity gold materials. The difference between them lies in the purity of gold. 1. Zujin 999: Zujin 999 refers to the purity of gold materials reaching 99.9% (also known as 999 parts per thousand). This represents that the gold material contains very few ...Read more -
Hongkong jewellery and gem exhibition
The 2023 Hong Kong Jewellery Gem Fair, organised by Infirman Exhibition Group, will be held twice a year on 16 September 2022, the exhibition will be held at Hong Kong Convention and Exhibition Centre, 1 Expo Drive, Wan Chai, Taiwan, China. The exhibition area is expected to reach 135,000 square ...Read more -
Metals and new metal materials industry: Continue to look to gold
Base metals: The domestic RRR cut boosts confidence, and the price of base metals is expected to fluctuate upward. According to Wind, from September 11 to September 15, LME copper, aluminum, lead, zinc, tin prices changed by 2.17%, 0.69%, 1.71%, 3.07%, 1.45%. Overseas, according to Wind, the U.S....Read more -
What are the Gold extraction methods
1. The separation of nitric acid to extract gold the separation of nitric acid can be used, concentrated nitric acid into beakers, the need to extract gold into the metal into beakers. The Beaker is then placed on a beaker holder and heated with an alcohol lamp to produce flaky gold. 2. Aqua reg...Read more -
Welcome to visit Hasung at Hongkong Jewellery Exhibition in Sept. 20th-24th.
Hong Kong, the world’s premier trading hub for jewelry, is a free port where there are no duties or restrictions imposed on precious jewelry products or related materials. It is also the ideal springboard from which traders worldwide can venture out to the booming markets of mainland China and th...Read more -
How gold nuggets are made?
The production method of gold nuggets is mainly divided into the following steps: 1. Material selection: Gold nuggets are usually made of gold with a purity higher than 99%. When selecting materials, strict control is required for their quality and purity. 2. Melting: Add the selected material in...Read more -
Welcome to visit Hasung in 2023 Bangkok Jewelry and Gem Fair, Thailand
Hasung will participate in 2023 Bangkok Jewelry and Gem Fair, Thailand on 6th Sept. – 10th Sept. 2023. Welcome to visit us at booth V42 (Jewellery Equipment and Tools Area). About Fair: Sponsor: Department of International Trade Promotion Exhibition area: 25,020.00 square meters Number of ...Read more
