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

If it is silicon material cleaning, you can use 25-28KHZ directly. This kind of low frequency ultrasonic power is more powerful. If the thin silicon wafer has to be 80-120KHZ. The frequency selection is based on the size of the particles to be processed on the wafer

Q:The working principle of quartz tube heater

The quartz tube electric heater is also called a halogen tube electric heater, and its heating body is an electric heating wire, which is worn in the quartz tube, and the quartz tube is supported, protected and exothermic. The utility model utilizes the far infrared quartz tube to heat, and the heat transfer mode is a radiation line, and the utility model has the advantages of penetrating force, good heating and good orientation.

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

Crystal powder from high quality natural stone processing, and SiO2 containing SiO2, used for nail making crystal nail armour, there are a variety of colors, there are colorless transparent.

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

The heat shrinkable tube is composed of a transparent heat shrinkable tube, a hot melt pipe and a stainless steel needle (or ceramic rod / quartz rod).

Q:What is crystal powder?

Crystal powder has high content of SiO2 and low impurity content. It can be used as raw material of optical fiber, quartz glass, quartz tube, quartz rod and quartz crucible. It is used in optical communication, lighting and semiconductor industries.

Q:Characteristics and characteristics of ultra high temperature filter media

Early silicon aluminum ceramic fiber ketone, traditional textile and non-woven fiber as the filter material. Ceramic textile fibers were developed in 1970s, consisting of aluminum, boron and silicon. After nearly 30 years of continuous improvement, its new generation of ceramic fiber filter bag can withstand nearly 800 degrees of high temperature. At present, ceramic textile fiber filter bag has been used in many high temperature flue gas purification. Although the performance of ceramic textile fiber bags has been greatly improved, the biggest problem of this ceramic filter is that the fiber is brittle and easy to break.

Q:Is quartz wool insulation material?

Reinforcement used primarily as electrical insulating materials, heat insulation materials, and composites. Used in aircraft head, radome, rocket tail nozzle, space vehicle ablation material, optical fiber and other thermal insulation materials.

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: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.