In Shenzhen, China, a $70 million synthetic diamond production base is about to be born, the Airbnb diamond factory. Investing in the construction of a diamond factory demonstrates Airbnb's firm determination to enter the jewelry industry.

In December last year, Aribnb acquired a plot for the construction of the plant for $12 million, with a planned construction period of two and a half years. After the whole production is completed, about 1 million carats of rough diamond-quality synthetic diamonds can be produced each year; in addition to the artificial rough diamonds supplied to the market, the polished synthetic diamonds will be mostly used in the production of the company's Airbnb jewelry.

Why does Airbnb spend a lot of money and big price to add to the artificial diamond industry? In this regard, the person in charge disclosed that there are three main reasons:

First, synthetic diamonds are more cost effective than natural diamonds. Natural diamonds are the product of the natural environment. They have many natures and unstable quality. It is difficult to mass-produce and customize commercial development and production. The world's truly perfect natural diamonds are rare and expensive, which is unbearable for ordinary consumers. Synthetic diamonds are made in the laboratory to simulate the growth environment and conditions of natural diamonds. The physical and chemical properties are the same, but artificial diamonds are about half the price of natural diamonds, and their price/performance ratio is more acceptable to the general public.

Second, advocating the use of synthetic diamonds is more in line with the concept of green environmental protection. Compared with the natural diamonds caused by natural diamond rough mining, such as environmental damage, destruction of human living environment, and human moral choice problems, the cultivation process of artificial diamonds is always in the laboratory artificial environment, with environmental protection and safety in the production process. Controllable and other characteristics, advocate consumption of artificial diamonds and green environmental protection, sustainable development is in line.

Third, the choice of consumer synthetic diamonds is a market-oriented and development trend. Among the jewelry consumer groups, some people who like high-end consumption like to buy natural diamonds, and expect to preserve, increase, realize and inherit by owning precious stones and jewelry. In recent years, the public's values ​​of gemstones have quietly changed, especially in the millennial generation. Fashion has become the primary consideration for its consumption of jade, and the first thing they consider when buying jewelry is the aesthetic appearance and satisfaction of the experience. More attention to wearing features and fashion. Therefore, artificial diamonds that are much cheaper than natural diamonds but have a natural diamond phosphorescent effect, are available in a variety of colors, and can be implanted with human factors have been widely recognized for their gemstone consumption circles.

The artificial diamond market has great potential and broad prospects. It is foreseeable that this kind of synthetic diamond jewelry with better cost performance, more environmental protection, and more in line with the public, especially young people's consumption concept, will guide the new trend of consumption. In recent years, world-renowned jewellery companies, including Swarovski and Ada Diamonds, have increased market research on artificial diamond production and artificial diamonds for brand jewellery, and have proposed many cutting-edge design concepts.

Level Transmitter

The liquid level transmitter can convert the changes of various level parameters into analog signals, and transmit them to the control room remotely for centralized display, alarm or automatic control of secondary instruments or computers. Its good structure and installation method can be applied to the continuous detection of liquid level, material level or material level under special conditions such as high temperature, high pressure, strong corrosion, easy crystallization, anti-clogging, anti-cold junction, and solid powdery and granular materials. , can be widely used in detection and control in various industrial processes.

Liquid level transmitters can be applied to liquid Level Measurement and control in industrial sites, rural water supply and sewage treatment, petroleum, chemical industry, power plants, hydrological monitoring, reservoirs, dams, hydropower construction and other fields of liquid level measurement and control. Liquid level transmitters have input type, straight rod type, flange type, threaded type, inductive type, screw-in type, floating ball structure design, with anti-blocking type design, simple device, convenient use and strong interchangeability , The high-quality sensor has high sensitivity and fast response speed, accurately reflects the slight changes in the flow or static liquid level, and has high measurement accuracy.

Advantages of Level Transmitters

1. The device is simple, easy to use, and has strong interchangeability.

2. It is suitable for measuring the liquid level and interface of the liquid medium in the container. In addition to on-site instructions, it can also be equipped with remote transmitters, alarm switches, and complete detection functions.

3. The reading is intuitive and eye-catching, and the direction of the observation indicator can be changed according to the user's needs.

4. The measurement range is large, not limited by the height of the storage tank.

5. The indicating mechanism is completely isolated from the measured medium, with good sealing performance, high reliability and safe use.

6. Simple structure, convenient installation, convenient maintenance, corrosion resistance, no power supply, explosion-proof.

7. The high-quality sensor has high sensitivity and fast response speed, accurately reflects the slight changes of flowing or static liquid level, and has high measurement accuracy.

8. With intrinsically safe explosion-proof and isolated explosion-proof capabilities, it can be used in various dangerous places.

9. With anti-blocking design, it can realize the measurement of the liquid level of paste medium.

10.100% equal division scale, LED/LCD indicator head, very convenient to read on site.

11.4~20mA two-wire signal transmission, strong anti-interference ability and long transmission distance.

12. Exquisite and unique zero point, full scale, and nonlinear compensation ensure the accuracy and stability of the instrument within the range of operating conditions.

13. The Pressure Sensor directly senses the liquid level pressure and is not affected by the foaming and accumulation of the medium.

14. Wide range of tested media can be used, such as oil, water and paste, with certain anti-corrosion ability.

Classification of liquid level transmitters

1. Single flange liquid level transmitter

Single-flange liquid level transmitters have flat flanges and flange liquid level transmitters with insert barrels, both of which are suitable for single-flange liquid level transmitters that use the gravity of the medium to be measured to measure the height of the liquid level. For medium with high viscosity and easy crystallization, it is generally used in open containers or equipment installations.

2. Double flange liquid level transmitter

The double-flange liquid level transmitter is a Differential Pressure Transmitter, which provides a reliable measurement method to prevent the measured medium from directly contacting the isolation diaphragm of the transmitter. The main features are the need to isolate the high-temperature medium from the transmitter, the measurement medium has a corrosive effect on the sensitive components of the transmitter, the suspension liquid or high-viscosity medium, the measured medium solidifies or crystallizes due to changes in the environment or process temperature, and the measured medium is replaced It needs to be strictly purified to measure the first class. Double flange liquid level transmitter is mainly used in the measurement of liquid level in sealed pressure vessels.

3. Submersible liquid level transmitter

The submersible liquid level transmitter has rod type and arm type. Its principle is based on the principle that the measured liquid static pressure is proportional to the height of the liquid. It uses the piezoresistive effect of diffused silicon or ceramic sensitive elements to convert the static pressure into electricity. Signal. After temperature compensation and linear correction, it is converted into 4~20mA current signal output. Due to the characteristics of this transmitter, such as convenient installation, strong adaptability, etc., it can perform high-precision measurement from water, oil to paste with high viscosity, and is not affected by the foaming and accumulation of the measured medium. It is generally used in open Devices for mouthpieces or equipment.

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Wuxi Winsun Automation Instrument Co., Ltd , https://www.winsunwx.com