The process of preparing ultrapure water in the electronics industry can be roughly divided into the following categories:

1. The traditional water treatment method of preparing ultrapure water using ion exchange resin has the following basic process flow:

Source water (tank) → Source water pump → Mechanical filter → Activated carbon filter → Softener (selected according to the hardness of the water) → Precision filter → Cation bed → Anion bed → Mixed bed (single-stage or two-stage) → Pure water tank → Pure water pump → Rear precision filter → Water point

2. The combination of reverse osmosis water treatment equipment and ion exchange equipment is a relatively economical and popular method, and its basic process flow is as follows:

● Source water (tank) → Source water pump → Mechanical filter → Activated carbon filter → Softener (selected according to the hardness of the water) → Precision filter → Reverse osmosis equipment → Intermediate water tank → Mixed bed (single-stage or two-stage) → Water point

Source water tank → Source water pump → Mechanical filter → Activated carbon filter → Softener (selected according to the hardness of the water) → Precision filter → High pressure pump → Reverse osmosis device (single-stage or two-stage according to the quality of the source water) → Intermediate water tank → Mixed ion exchanger (single-stage or two-stage) → Terminal filter → Product water tank → Water point

B source water (tank) → source water pump → mechanical filter → activated carbon filter → water softener (selected according to the hardness of the water) → precision filter → high-pressure pump → reverse osmosis device (single-stage or two-stage according to the quality of the source water) → intermediate water tank → mixed ion exchanger (single-stage or two-stage) → product water tank → pure water pump → nuclear grade resin → terminal filter → water point

The water tank in the pure water system of the circuit board is equipped with a liquid level control system, the water pump is equipped with high and low pressure protection devices, online water quality detection and control instruments, and the electrical system adopts PLC programmable controllers, truly achieving unmanned operation; At the same time, a method that combines recommendations and customer requirements is adopted in the selection of process materials, making the equipment more cost-effective and reliable compared to other similar products; We recommend that users spend the least amount of money to achieve the best results; Comprehensive consideration of various process flows; Achieve the lowest cost and the best effect.

The effluent quality meets the ASTM pure water quality standard in the United States, the electronic grade water quality technical standards for China's electronic industry (18M Ω. cm, 15M Ω. cm, 10M Ω. cm, 2M Ω. cm, 0.5M Ω. cm), the trial standards for ultra pure water quality in China's electronic industry, the pure water indicators for semiconductor industry, and the water quality standards for integrated circuits.

Water quality standards:

Application areas of semiconductor ultrapure water equipment, ultrapure water equipment, and ultrapure water treatment equipment:

Cleaning of aluminum foil and working parts for electrolytic capacitor production;

Pure water for the production of electronic tubes, cathode ray tubes, and cathode ray tubes;

Pure water is used for the production of black and white cathode ray tube fluorescent screens, cleaning of glass shells, precipitation, wetting, film cleaning, and neck cleaning;

The screen of the LCD display needs to be cleaned with pure water and mixed with pure water solution for production;

Pure water is mainly used for cleaning silicon wafers in transistor production;

High purity water cleaning of silicon wafers in integrated circuit production;

Pure water for semiconductor materials, devices, printed circuit boards, and integrated circuits;

Production, processing, and cleaning of semiconductor materials and crystalline materials;

Production of high-quality cathode ray tubes and fluorescent powders;

Surface polishing treatment for automobiles and household appliances.