Principle of high and low temperature impact test for thermal expansion and contractionIntroduction

It is a testing equipment used in the metal, plastic, rubber, electronics and other material industries to test material structures or composite materials. It can withstand continuous temperature and extremely low temperature environments in an instant, and can detect chemical changes or physical damage caused by thermal expansion and contraction of samples in the shortest possible time.

Test Method

GB/T2423.1.2、GB/T10592-2008、GJB150.3。

product structure

Inner box dimensions

W×H×D ：400×400×400(mm) 64 升

outer box dimensions

W×H×D ：1700×1900×2000(mm)

Inner box material

Mirror stainless steel plate (SUS # 304)

outer box material

Sandgrain stainless steel plate (SUS # 304)

Insulation material

a. High temperature tank: Aluminum silicate insulation cotton b. Low temperature tank: High density PU foam

door of the box

Single panel doors for upper and lower boxes, left opening a. Embedded flat handle b. Rear button: SUS # 304 c. Silicone foam strip

Sample placement rack

Stainless steel SUS # 304 inner box

heating system

Fin type heat dissipation tube shaped stainless steel electric heater 1. High temperature slot 6 KW 2. Low temperature slot 3.5 KW

Air circulation system

1. Two 1HP motors 2. Stainless steel extended shaft 3. Multi blade fan (SIROCCO FAN) 4. Specially designed fan forced air circulation system

Technical Specifications

Temperature range of the test tank

-65℃— 200℃

High temperature tank temperature setting range

60℃— 220℃

Heating time of high temperature tank

RT (room temperature) --+150 ℃ ≤ 40min (at room temperature of+10-+30 ℃)

Low temperature tank temperature setting range

－80℃-- －10℃

Cooling time of low-temperature tank

RT (room temperature) -80 ℃ ≤ 85min (at room temperature of+10-+30 ℃)

temperature fluctuation

±1.0℃

Temperature Uniformity

±2.0℃

Impact recovery time

－55-- ＋85℃≤ 5min.

refrigeration system

condenser

Fin type attached platform dispersing hot air fan

evaporator

Fin type multi-stage automatic load capacity adjustment

expansion valve

Danfoss components from Denmark

compressor

*French "Taikang" brand fully enclosed compressor

refrigerant

Imported environmentally friendly refrigerant R404A from the United States

Refrigeration auxiliary components

Desiccant (Denmark), oil separator (USA), refrigerant window (Denmark), solenoid valve (Japan), filter (Japan), pressure controller (Korea), shut-off valve (Italy) and other refrigeration accessories are all imported. High and low temperature impact test chamber