Isothermal linear rapid temperature change test chamber

Isothermal linear rapid temperature change test chamberWorking Principle:

Quickly switch between high and low temperatures at a set time frequency, and perform rapid temperature change testing on the test object to detect the physical changes that occur during rapid temperature changes. Under the action of a rapid temperature change test chamber, the product is subjected to extreme testing, using artificial simulated environmental temperature acceleration techniques (alternating expansion and contraction of the product when cycling within the upper and lower limit extreme temperatures) to change external environmental stress, causing thermal stress and strain in the product. By accelerating stress, potential problems in the product are exposed, such as material issues, process issues, and manufacturing problems.

Under conditions of rapid temperature changes, thermal stress and strain are generated. By accelerating the stress, potential defects in the product (such as material defects, process defects, and manufacturing defects) are exposed to avoid unnecessary losses caused by environmental stress during use. This has a significant effect on improving product delivery yield and reducing the number of repairs.

Refrigeration principle: using air-cooled piston compression cascade refrigeration method; The refrigeration method adopts vapor compression refrigeration, which utilizes the latent heat of evaporation of liquids such as Freon to absorb heat from the cooled object and achieve refrigeration. In the process of vapor compression refrigeration cycle, the liquid entering the evaporator through expansion valve or capillary tube throttling absorbs the latent heat of evaporation from surrounding objects and evaporates. After evaporation, it becomes a low-temperature and low-pressure gas that is sucked in by the refrigeration compressor. After compression by the compressor, it becomes a high-temperature and high-pressure gas that enters the condenser, where it is cooled into a high-pressure liquid, and then enters the evaporator through expansion valve or capillary tube. This cycle repeats, absorbing heat from low temperature to achieve refrigeration, and releasing heat from high temperature.

Freezing system: a refrigeration and humidity control system composed of original French "Taikang" fully enclosed compressors (dual compressor overlay refrigeration)

Cooling method: air-cooled condensation method.

Evaporator: fin type automatic load capacity adjustment.

Expansion system: an automatic capacity controlled refrigeration system.

Refrigerant: Adopting environmentally friendly (HFC) with zero ozone coefficient. DuPont refrigerant R404A, R23 from the United States.

Supply air circulation system: circulation motor: one set; Stainless steel extended axis; Fan: SUS304 stainless steel multi blade fan blade (SIROCCO FAN); Stainless steel adjustable wet grille, (adjustable up and down, left and right 120 degrees)

Heating system: Stainless steel finned heat dissipation tube shaped heating air circulation method

Control system: 7-inch LCD touch programmable controller

Controller specifications:

Accuracy: Temperature ± 0.1 ℃+1 digit, humidity ± 0.5RH%+1 digit

Resolution: Temperature ± 0.01, humidity ± 0.1RH%

Temperature slope: adjustable from 0.1 to 9.9

Equipped with upper and lower limit standby and alarm functions

Temperature and humidity input signal PT100

Screen display function:

Direct display of temperature setting (SV) and actual (PV) values

Can display the current program execution number, segment number, remaining time, and number of cycles

Accumulated operation time function

Has a separate program editing screen.

The screen display protection function can be set to timer, TIMER, or manually turned off

Program capacity and control functions:

Available program groups: A total of 120 PATTEN

Available memory capacity: 12000 SEGMENT in total

Repeatable command execution

SEGMENT time setting: 0-99Hour59Min

Equipped with power-off program memory, it automatically starts and continues to execute program functions after power restoration

Real time display of graphical curves during program execution

It has the function of scheduled startup and shutdown

Has date and time adjustment function

Button and screen lock (LOCK) function

SRAM with battery protection, capable of storing device settings, sampling values, and sampling time, allowing for real-time sliding observation of data through finger touch on the screen

Equipped with RS-232 communication interface and free testing software

Isothermal linear rapid temperature change test chamberSpecifications and Technical Parameters:

Material of rapid temperature change test box body:

The shell is made of SUS # 304 stainless steel grit plate or A3 steel plate processed by machine tool, which is easy to clean, resistant to aging, and has the characteristics of durability, wear resistance, corrosion resistance, etc.

The inner liner is made of SUS304, 8k mirror stainless steel plate, which is bright, beautiful, and corrosion-resistant.

Insulation material: high-density aluminum silicate fiber cotton, which has the characteristics of high temperature resistance and low heat transfer coefficient compared to similar glass fiber masks. The insulation thickness is 100mm to ensure that the temperature inside the test room will not be transmitted to the outside of the equipment, making the test temperature more reliable.

A double-layer high tensile silicone sealing strip that is resistant to high and low temperatures is used between the test chamber door and the box body to ensure the sealing of the testing area. The main door plate is made of stainless steel, which is beautiful, durable, and uses a non reactive door handle, making it easier to operate, durable, and not easily damaged.

High quality fixed PU movable wheels are installed at the bottom of the machine, which can easily move and fix the machine.

Label configuration: one test hole (with stainless steel cover and sealing plug); Two storage shelves; Observation window side (equipped with lighting)