ISO 16750-4 Auto Parts Test Equipment Splash Water And Submersion Test Cham

Product Description

ISO 16750-4 Auto Parts Test Equipment Splash Water And Submersion Test
Chamber



Standard:

ISO16750-4 Road vehicles-Environmental conditions and testing for electrical
and electronic equipment-Part 4: Climatic loads, clause 5.4.2 Ice water
shock test.

VW-80000 Electric And Electronic Components In Motor Vehicles up to 3.5t
General Requirements, Test Conditions and Tests clause 9.12 K-12 Temperature
Shock With Splash Water;

GB/T 28046.4-2011 Auto Parts Test Equipment



Purpose:

This test simulates a thermal shock induced by ice water and applies to
products in the splash areas of the vehicle. The purpose of this test is to
simulate ice water splashing over a hot system/component. This happens when
driving on wet roads during the winter. Failure modes are mechanical
cracking of materials or seal failures caused by different temperature
expansion coefficients.

It is a reliability test equipment for various kinds of electronic,
electrical, plastic and other raw materials and devices for cold resistance,
heat resistance, ice water splash resistance test, ice water immersion
resistance test and quality control engineering reliability test equipment.



Test method:

Splash water test:

Heat the DUT in a hot air oven at T max for the specified holding time, t h
. Then splash the DUT with ice water for 3 s.

If the DUT is splashed in the vehicle from only one direction, splash it
from this direction only while it is in an as-installed position. If the
equipment is splashed from various directions in the vehicle, then these
directions shall be taken into account. In this case, use a new DUT for each
splash direction. The width of the splash directed at the DUT shall always
be greater than the width of the DUT. If the DUTs to be splashed prove too
big for one jet, arrange several jets in a row to produce a line of splash
impact on the DUT. See Figures 4 to 6.

Test parameters include:

⎯ number of cycles: 100;

⎯ holding time, t h , at T max : 1 h or until DUT temperature stabilization
is reached;

⎯ transition duration: < 20 s (for manual transition of DUT between
temperature storage and splashing);

⎯ test fluid: de-ionized water;

⎯ water temperature: 0 °C to +4 °C;

⎯ water flow: between 3 l and 4 l per 3 s (splash duration);

⎯ distance between jet and DUT surface: (325 ± 25) mm (water shall be
applied over the complete width of the DUT);

⎯ operating modes: see Figure 5;

⎯ orientation of the DUT: as in the vehicle. Auto Parts Test Equipment



Submersion test:

Connect the DUT to the test equipment. Operate the DUT in a hot air oven at
T max for the specified holding time, t h. With the device still operating,
submerge it for 5 min in an ice water tank at least 10 mm deep.

Test parameters include:

⎯ number of cycles: 10;

⎯ holding time, t h , at T max : 1 h or until DUT temperature stabilization
is reached;

⎯ transition duration: < 20 s;

⎯ test fluid: de-ionized water;

⎯ water temperature: 0 °C to +4 °C;

⎯ immersion time: 5 min;

⎯ operating mode: 3.2 in accordance with ISO 16750-1;

⎯ orientation of the DUT: as in the vehicle.



Parameter:

Inner size 1000*1000*1000mm
Outer size 1650*1800*2300mm
Submersion area size 500*500*500mm
Jet qty. 1
Jet position Right side of the inner chamber
Distance between jet and DUT surface 325 ± 25 mm (Can be adjusted
manually)
Jet water flow 3-4L/3S
Water temperature control range 0-+4°C
Temperature range RT+10°C -150°C
Cooling rate 25°C-2°C≤60min
Heating rate
RT+10°C -150°C≤45min

Injection time per cycle (30min) 3S, interval time: 29m57s (touch
screen setting)
Cycle 100times (touch screen setting)
ISO 16750-4 Auto Parts Test Equipment Splash Water And Submersion Test
Chamber 0

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