Molten Metal Splashes Impact Test Apparatus

Application：
Molten Metal Splashes Impact Test Apparatus is developed according to EN 348 and ISO 9150 test standards, and meets the requirements of GB8965.2-2009 Welding Protective Clothing and GB/T 17599-1998 Test Standard for Impact Resistance of Molten Metals. The measuring principle is that the welding wire rod is melted by a welding torch. When the temperature of the back calorimeter of the fabric rises by 40 C caused by the droplets, the number of droplets of molten metal is measured.
Molten Metal Splashes Impact Test Apparatus for measuring impact resistance of high temperature metal droplets in protective clothing and high temperature resistance of textiles.
Projections of molten metal drops at a point on a vertical oriented test specimen and measurement of the number of the drops required to cause a 40 K temperature rise in a sensor behind the specimen.

Standard：
According to AQ 6103,ISO 9150:1988,CSN EN 348:1992,GB8965.2-2009 and GB/T 17599-1998

Fetures:
1. The impact performance tester of molten metal droplets includes burner, sample frame, welding rod driving device, burner flow controller, man-machine interface display device, etc.
2. Oxyacetylene torch is used to melt metal strip, and the diameter of welding nozzle is (1.2 +0.1) mm.
3. Stepping motor is used to drive the metal strip and set the running speed of the metal strip.
4. Droplet-melting guiding mechanism with high-temperature anti-sticking guide groove with an angle of 45 degrees;
5. Fabric temperature sensor device for measuring back temperature rise of sample.
6. The counterweight copper hammer device is used to set the fabric pre-tension 175g (+0.5g).
7. Temperature rise data can be automatically recorded, and the number of melt droplets can be recorded by the tester.
8.Drop guide to collect the drops and to guide them towards the vertically oriented test specimen.
9.Senor for measuring the temperature linked to a recording device.
10.Holding frame and counterweights for the test specimen.
11.Motor speed can be adjust so that the steel rod is fed at the rate of (10 f 1) g/mm.
12.Needle valves adjust the O2 and acetylene flow rate.
13.LCD Screen display and control the motor speed.

Technical parameters:

Size	700850500mm
Weight	42KG
Electrical requirements	220V, 50HZ, 5A
Environmental Requirements	Temperature(20+2)degree C, Humidity (65+5)%
Gas requirements	oxygen, acetylene
standard	AQ 6103、ISO 9150:1988、CSN EN 348:1992
Weight	42KG
Oxyacetylene torch melts one end of the wire (rod) and the diameter of the welding nozzle	(1.2 + 0.1) mm
The wire feeding rate of the motor	(10 +1) g/min
The wire (rod) movement	Regulated by the motor of the wheel system
The distance d between the welding nozzle and the metal (rod)	can be adjusted, usually 12 mm.
Droplet mass	(0.50 +0.05) g
The frequency of droplet formation	20 drops /(min + 3s)
The starting distance from wire to torch nozzle	12 mm
The length of torch dark blue flame core	8mm
Funnel-shaped guide groove	the angle between the guide axis and the vertical plane can be adjusted.The diameter can pass through a metal bar with a diameter of (8 +0.2) mm, and the guide groove mouth can be covered when not in use
Bracket	supporting and fixing funnel-shaped guide groove, three-dimensional adjustable
Sensor bearings	melt-resistant insulating material, heat conductivity (0.125+0.015) W/(m.K), specific heat capacity (1.15J/(g.K) and surface groove size (13.5*11) mm at 40 C
Temperature sensor	armoured platinum resistance material, coated with high temperature anti-sticking agent, resistance 100_, plate shape, size (12.5 *10) mm, thermal response time < 0.5s at 0 C
Recording and displaying instrument	it can display the temperature rise behind the sample and the corresponding droplet number, time and frequency equivalents; the test temperature in the guide groove is > 250 C; the temperature rise on the back of the sample is > 40K, and the alarm will be given when the temperature rise reaches 40K
Accuracy	resolution < 0.5K, temperature display and alarm function test error < 0.4K;
Structure and installation	The temperature sensor can be connected by two holes near the center of the groove, and the sensor support is fixed on the sample frame by four side bolts. The heat-resistant adhesive for the sensor is embedded in the groove of the sensor support, and the protruding part is (0.5 +0.2) mm.
Sample clamping support	can ensure that the sample is close to the sensor support block
pre-tension to the specimen	(175 +5) g
The position of the specimen	can be adjusted in both vertical and horizontal directions

Molten Metal Splashes Impact Test Apparatus SL-FL53

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