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FAQ

Is it a vacuum cup with fluorine coating that affects the health?

Fluorine is a nonmetallic chemical element, chemical symbol F, atomic number 9. Fluorine is the halogen elements of a periodic system of A VII family, located in the second period in the periodic table of elements.

What are the aluminum films used in glass processing enterprises?

Production lead materials are debited to production costs, manufacturing expenses, sales expenses, and management overhead"Subjects such as "raw materials" are credited.

How is glass made? What material is it made of?.

Bulletproof glass is made of glass (or organic glass) of a composite material and the quality of engineering plastics through special processing is obtained, it is usually transparent material, usually including polycarbonate layer on glass layer.

Glass raw materials, in addition to quartz sand, what else can be the main raw materials?

Glass raw materials are: soda ash, limestone, quartz, the ratio is: 1:1:6

What's the difference between three kinds of glass fiber board, epoxy board and FR4 board?

Glass fiber board, also known as glass fiber board, commonly used in soft base cloth, leather bag, outside, a beautiful wall and ceiling decoration. Very wide range of applications. It has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection and flame retardance.FR-4 also known as the glass fiber; glass fiber board; FR4 reinforcing plate; FR-4 epoxy resin board; flame retardant insulation board; epoxy plate, FR4 plate; glass board; PCB drilling pad.

What are the raw materials of water glass?

The water soluble alkali metal silicate glass is formed by the combination of alkali metal oxide and silica, also called paohuajian. Water glass can be divided according to the type of alkali metal sodium silicate and potassium silicate, the molecular formula of N and K2O.nSiOz. in Na2O.nSiO2 coefficient is called the modulus of water glass, molecular oxidation silicon and alkali metal oxides in water glass ratio (or molar ratio). The modulus of water glass is an important parameter of water glass, generally between 1.5-3.5. The greater the modulus of water glass, solid water glass is difficult to dissolve in water, which can dissolve in water at room temperature for n 1, n is required to increase the water solubility. N is greater than 3 to 4 above atmospheric pressure steam can be dissolved. The modulus of water glass is larger, more silicon oxide content, water glass viscosity, easy decomposition hardening, bond strength increases.

The benefits of natural thin wood planks

Sheet material means a flat rectangular building material plate with a width of more than 2 times its thickness, usually made of flat rectangular building material, used as a wall, ceiling, or floor member. Also refers to the forging, rolling or casting of the metal plate, divided into thin plate, medium plate, thick plate, thick plate, usually made of standard size flat rectangular building material board.

FRP process piping manufacturing process?

A, lined with resin preparation. According to the quality control department according to the work environment, temperature conditions made resin formula system for lining resin matching, batching quantity according to the manufacturing schedule reasonable grasp. When the situation changes, the quality inspection department and the manufacturing department shall adjust the formulation in time, and prepare the resin according to the new formula;B, material preparation. According to the design requirements, the material needed for making the lining is transported to the designated position, and some wide width reinforcement materials are firstly cut and processed to the design width;C, lining production. According to the design requirements of the paving layer step liners, each layer in the process of laying under reasonable tension between the amount of overlap, and combined pressure roller rolling repeatedly from bubble to ensure fiber soaked completely. And requests each enhancement material layer to achieve the design resin content request;D, preliminary self check. According to the design requirements of overlay end of each layer, the operation requirements for quality testing of workers: whether the design meets the lining thickness, whether there is a local poor glue, hanging glue phenomenon, whether there is a white spot, whether there is a bubble, etc., if the occurrence of the above situation timely report and take measures;