Ventilated Aging Test Chamber for Material Aging Testing
Product Description
Ventilative Aging testing machine is applicable to the testing of variation characteristics of electrical wire, leather, plastic, rubber and cloth before and after heating. A special ventilation adjustment function is designed for the maintenance of fresh air in the box when the electric wire-type material is heated.
Product Features
The UL ventilative Aging box of our company is designed and manufactured in full accordance with the relevant standards of UL design and requirement.
An emphasis is placed on the uniformity of temperature, stability, heat-preservation capacity, ventilation volume, heat stagnation time, heat exchange capacity and other aspects to meet a special requirement; a large number of new designs are carried out in terms of air duct, fan, electrothermal mode, insulation materials, cabinet structure, etc. , it can be fully measured by UL and CCIC.
1, the testing system structure is designed advancedly and reasonably, its manufacturing process is normalized , and its appearance is beautiful and gorgeous .
2, the main functional components of the test machine are handpicked from the world-famous brand configuration (high gold content), technical principles of it are advanced and reliable, and the noise and energy-preservation are controlled in the best way.
3, the mating and assembly compatibility of spare parts are good, the main functional components of it are the imported parts on an international advanced level, improving the safety and reliability of the product, and ensuring that the user’s demand for a long-term and highly frequent use be met.
4, the equipment has a good operability and maintainability, good temperature stability and durability, the good safety performance, non-pollutional to the environment and harmless to human health.
Standards
1, in line with the standard of ASTM D5423-93(R2005)(II-type oven)and ASTM D5374-93(2005),ASTM D2436,Section 420.9 (Section 4.2.3 of UL2556) UL1581 of "electrical insulation forced ventilation laboratory oven" of United States Materials and Testing Association；
2,IEC 60216-4-1(GB/T11026.4)of Part 4-1 : aging oven. Single-chamber oven of thermal endurance property of electrical insulating materials;
ISO4577,IEC60811-1-2(GB/T2951.12),BS903,BS6746,JB7444,GB/T3512,CNS3556,CNS742,JIS7212,JIS7757 and so on.
Main Technical Parameters
1.Size:650ⅹ1275ⅹ1040mm(W×H×D)
2.Inner box size:450ⅹ500ⅹ500mm(W×H×D)
3.Temperature range:normal temperature RT+10℃～300℃
4.Temperature control:PID digit setting,SCR current regulation and control
5.Control precision:±0.5℃
6.Analysis precision:0.1℃
7.Distribution error:±1%
8.Heating up time:it takes about 40 minutes to rise from normal temperature to 300℃
9.Test rack:rotary table,two layers,rotate speed: 8~10r..p.m
10.Timing:0～999hr
11.Air ventilative rate:8～200 times/ hr adjustable,complete with a ventilative turning knob,watt-hour meter.
Machine structure and material:
a) Inner box material: SUS#304 stainless steel,
b) Outer box material: Stainless steel plate, electrostatic stoving varnish.
c) Thermal Insulation Material: high-density rock wool.
d) Heater: a set of spiral tube heaters, 220V 6KW.
Accessory equipment:
1.No-fuse switch
2.Over-temperature Protection and indicator Light
3.Various action indicator lights
4. A group of Rotary disc and rotary Motor
5.Air ventilation measurement device and a set of wide-angle projection lighting equipment
1． Multi-layer vacuum glass window
Circuit Control System:
1. The temperature controller uses the microcomputer electronic-type setting and the digital display, from the Japanese brand: Omron
2. The system adopts PROPORTIONAL+INTERGRAL+DIFFERENTIAL+SCR control (i.e., proportion, integral, differential + SCR), which can improve the service life and stability of the interface of control element.
3. capable of PID automatic calculation without needing manual setting
4. A high-precision filament sensor is used
5. The products are all subjected to whole-machine aging test for 48 hours when leaving factory
Formula to calculate the air ventilation rate:
3590(X-Y) N:ventilation volume per hour (ventilation times)
X:ventilation power consumption(W)
N＝ Y:non-ventilation power consumption (W)
V:intra-box window volume(g/cm3)
V×D×△T D:intra-box air specific weight(g/cm3)
△T:temperature difference in and out of the box(℃)
