Q:What is the optimum ultrasonic frequency for ultrasonic cleaning of silicon wafers?

The bottom wall of the frame is made of fence like quartz bars, and the whole frame is supported by the support feet in the cleaning tank. The present invention changed the vertical level of ultra ultra washing after washing solution, because the distance of ultrasonic ranging from silicon source pollutants easily accumulate in the surface of a silicon wafer is caused by a local difficult clean problem and eliminate the made of PTFE material bearing silicon adsorption and blocking software basket will transfer the ultrasonic source, resulting in local area of silicon wafer surface cleaning the phenomenon is not clean.

Q:The working principle of quartz tube heater

Carbon fiber is a fibrous carbon material. It is a kind of strength than steel and density than aluminum ratio, stainless steel is resistant to corrosion, high temperature resistance, heat resistant steel and as conductive than copper like, new materials have many valuable electrical, thermal and mechanical properties. The carbon fiber heater relies on a carbon fiber with good thermal conductivity as a heat conductor of both ends of the heater, which can play a fast heating effect, and the carbon heater can also be used in the bathroom due to the insulating property of the carbon. Carbon fiber quartz electric heater is a new kind of electric heating product. It uses carbon fiber as heating material. It is mainly used in air, water heating, industry, agriculture and other aspects. The quartz heater energy-saving and uniform heating, electric transmission speed. Long service life up to 6000 hours, care of carbon fiber infrared radiation of 8-14 microns, reduce the damage to the human body infrared material, our products are powerful, can accelerate the body's blood circulation, promote The new supersedes the old., improve immune function, there are not other heaters compared the advantage.

Q:What can be used after battery recycling?

Used batteries contain heavy metals and acid, alkali and other harmful substances, discarded, great harm to the ecological environment and public health. Heavy metal ions from waste battery cases will cause groundwater and soil pollution, threatening human health. On the other hand, waste batteries have color metals are precious natural resources, if the waste battery recycling, we can not only reduce the destruction of the ecological environment, but also to save resources.

Q:The problem of using crystal powder to make crystal

The crystal powder is made of high quality natural stone processing, high SiO2 content, low impurity content, can be used as optical fiber, quartz glass, quartz tube, quartz rod, quartz crucible materials, used in optical communication, semiconductor lighting industry, etc..

Q:Indoor cable heat shrinkable tube is fiber heat shrinkable tubes do

The transparent outer layer facilitates the detection of optical fiber joint connection is correct, the fiber can safe and easy to assemble, the contraction can keep the optical transmission characteristics of optical fiber, optical fiber joint to provide strength and protection, to avoid damage to the fiber during the installation process.

Q:Characteristics and characteristics of ultra high temperature filter media

Chemical vapor reaction (CVR) method. It is using B2O3 as the raw material by melt spinning is made of B2O3 heating low concentration ammonia, ammonia and ammonia to generate B2O3 boron reaction intermediate compounds, then the crystal type of unstable fiber under tension further in the mixed gas ammonia or ammonia and nitrogen in heating to 1800 DEG C, which is converted to BN fiber, its strength can be as high as 2.1GPa, modulus 345GPa.Chemical vapor deposition (CVD) method. The boron fiber is heated to 560 DEG C for oxidation at first. Then the oxidized fiber is heated to 1000-1400 DEG C in ammonia, and the BN fiber can be obtained by reaction about 6h.Organic precursor method. The fibers are made from a spinning process made from poly (urethane), which is crosslinked to produce non - melt fibers, which are then cleaved into fibers.

Q:Is quartz wool insulation material?

Method: (1) a quartz rod or tube oxyhydrogen flame melt drawing, then the oxyhydrogen blowpipe blowing, made of a diameter of 0.7 ~ 1 m quartz wool; (2) the flame melting quartz with high speed airflow form short fiber and mat; (3) the quartz wires or rods at a constant speed the oxyhydrogen flame or gas flame, high speed after softening into a longwire.

Q:What is an optical fiber heat shrinkable tube used for?

The transparent outer layer is convenient for detecting whether the joint of the optical fiber is connected properly, and the optical fiber can be assembled simply and safely. After contraction, the optical transmission property of the optical fiber can be maintained, and the strength and the protection of the optical fiber joint can be provided. To avoid damage to the optical fiber during installation.

Q:The difference between quartz fiber and high silica fiber

The high silica fiber is made from alkali free fiber or high silica fiber by acid treatment. The fibers are removed from other fiber components except SiO2 and then sintered by hot sintering;

Q:Fiber core and cladding are not roundness, which is used to describe the parameters of optical fiber

The crystal powder is Japanese jelly powder, crystal powder mainly composed of carrageenan, sodium alginate, agar gel and pectin gel plant compound and into, can slowly dissolve in cold water, soluble in hot water. Cold noodle powder (crystal powder) the amount of 0.8% of total food freezing and cold noodle ~ 1.0%.