Salt Spray Corrosion Test Room

Product Name

Salt spray corrosion test room / salt spray corrosion test chamber

Application

The salt spray corrosion test room breaks through the concept of conventional salt spray chambers. In addition to the functions of ordinary salt spray test equipment, it also incorporates alternating (cyclic) salt spray test functions, providing test environments for crevice corrosion and filiform corrosion, and offering hot-air drying, damp heat, forced drying and salt spray test environments.

Chamber Structure

• Room base: the room base is a grid frame welded from 8# channel steel, so that under level conditions it can bear the weight of the room body, personnel and specimens without unevenness or cracking of the room bottom. Base load capacity: 1 ton.
• Room structure: the room body (shell) consists of six room panels and one double-leaf large door, door size 950×1800mm; the inner side is high-quality high-strength PVC plate (to prevent rusting of the inner wall during long-term humidity operation), the outer side is high-quality SUS304B stainless steel hairline plate; the insulation medium is rigid polyurethane foam — light, impact-resistant and well-insulating; the large door is also made of stainless steel hairline plate, with inner/outer opening handles so that test personnel can freely open the door from inside the closed room.
• Top design: the room top is designed with an optimal conical angle (120 degrees) to prevent salt solution droplets formed by condensation on the top from dripping onto the test specimens.
• Saturator tank: 3mm SUS#304 stainless steel plate, equipped with a water level indicator.
• Heaters: specially customized corrosion-resistant titanium electric heating tubes.

Technical Parameters

• Working volume: 3 m³~116 m³
• Temperature range: +20°C~80°C
• Humidity range: 95~98%RH
• Air saturator: RT+10°C ~ 90°C
• Temperature uniformity: 2°C
• Temperature fluctuation: ±0.5°C
• Spray fallout rate: 1~2 ml / 80cm²·h
• Heating / cooling rate: 0.7~1°C/min
• Time setting range: 0~999 hours
• Temperature cycling range: 20°C~80°C

Control System

• Control instrument: the temperature control instrument uses a fully imported (US) large-screen display (5.7-inch LED); simple screen operation, easy program editing, no key input required, direct touch-screen options.
• Accuracy: 0.1°C (display range).
• Temperature sensor: PT100 platinum resistance temperature sensor.
• Control mode: balanced temperature control; all electrical components use (Schneider) series products.
• Temperature control: P·I·D + S·S·R system same-channel coordinated control.
• Auto-tuning: auto-tuning function instantly corrects temperature change conditions, making temperature control more precise and stable.
• Operating interface: the controller interface is selectable in Chinese or English; the real-time operation curve can be displayed on screen.
• Program capacity: 120 programs, each with 99 sections, each section loopable for 999 steps; the maximum time setting per section is 99 hours 59 minutes.
• Screen lock: after data and test conditions are entered, the controller has a screen lock function to prevent accidental shutdown caused by unintended touching.
• Communication interface: RS-232 or RS-485 communication interface, allowing program design on a PC, monitoring of the test process, and functions such as automatic start/stop and curve data printing.
• Screen saver: the controller has an automatic screen saver function to better protect the LCD during long-term operation (longer service life).

Refrigeration System

• Compressor: fully hermetic French Tecumseh 6HP × 1 set
• Refrigeration mode: air-cooled
• Refrigerant: R404A, R23 (environmentally friendly)
• Leak test: all system piping undergoes air-pressurized 48-hour leak testing.
• Independent systems: heating and cooling systems are fully independent.
• Refrigerant copper tubes: internally spiral-grooved refrigerant copper tubes.
• Evaporator: fin-type evaporator (with automatic defrost system).
• Imported components: filter drier, refrigerant flow sight glass, service valve, oil separator, solenoid valve and liquid receiver are all imported original parts.

Standards

GB, ISO, IEC, ASTM, DIN, JIS and other standards