CVD Synthetic Diamond Inspection Technology Exchange Conference held in Beijing

On September 2nd, the “CVD Synthetic Diamond Inspection Technology Exchange Conference” hosted by the Jewelry and Jade Jewelry Management Center of the Ministry of Land and Resources and the National Jewelry and Jewelry Quality Inspection Technical Expert Committee was held in Beijing. According to reports, since February this year, the National Jewelry Quality Supervision and Inspection Center has detected synthetic diamonds produced by gas phase precipitation synthesis (CVD) and heat treatment. Relevant foreign institutions have also discovered unpublished CVD synthetic diamonds sold under the name of natural diamonds in markets such as the United States, India, Singapore, and Belgium. As the first jewelry inspection institution in China to discover CVD synthetic diamonds that have not been publicized, the National Inspection Center attaches great importance to it. First, it strengthens technical research, increases the intensity and density of inspections within the central laboratory, and issues warnings to national quality inspection agencies. It also took the lead in researching and developing a set of efficient and feasible inspection and testing programs to effectively control the impact of CVD synthetic diamonds on the domestic diamond market. At the meeting, Shen Meidong, chief engineer of the National Jewelry Quality Inspection Center, introduced the process of discovering CVD synthetic diamonds by the National Inspection Center. Lu Taijin, the chief scientist of the center, introduced the research on CVD synthetic diamonds. Experts from relevant foreign institutions also introduced CVD synthetic diamonds. The latest technological progress, identification technology, etc. It is understood that the exchange meeting is held to protect the rights of jewelers and consumers, to ensure the stability of the diamond market, and to continuously improve the inspection technology level of CVD synthetic diamonds by domestic jewelry quality inspection institutions.

Stainless Steel Turnbuckles

Stainless steel nuts are components that tightly connect mechanical equipment, and can only be connected by screws on the inside, nuts and screws of the same specification. For example, M4-0.7 nuts can only be combined with M4-0.7 screws. (In the nut, M4 means the inner diameter of the nut is about 4mm, and 0.7 means the distance between the two threads is 0.7mm. );
The same is true for products made in the United States. For example, a 1/4-20 nut can only be combined with a 1/4-20 screw. (A 1/4 finger nut has an inner diameter of about 0.25" and 20 fingers have 20 teeth per inch. Features of Stainless Steel Round Nuts
Stainless steel nuts have the advantages of not easy to rust, anti-corrosion, thermal conductivity, and strong electrical conductivity. Another major use is injection, where it is embedded in plastic parts after heating, or injected directly from a mold.

Although many people may have used this stainless steel round nut, they do not really realize the importance and advantages of this nut. According to the introduction of the article, you should be able to understand what kind of characteristics this nut has. When a nut needs to be used in the future, it should be considered that such a nut plays a more important role.

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