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Instalacion de camara salina algunos puntos
DATOS TECNICOS:
Structure Feature
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Chamber
Structure
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◆Cabinets are made of imported 5mm PVC ploy plate(Nanya, Taiwan), max. durable temperature is 85 ℃
◆Cabinet sealing cover is made of European 6mm acrylic sheets
◆Salt solution reservoir equipped with water level is designe in the chamber,easy to clean
◆Humidifying tower is made of SUS 304#, endurable high pressure and good thermal insulation effect.
◆Specimen supports designed specially ensure a adjustable position angle for each specimen in order to get a uniform fog and a big specimen capacity.
◆Use water to seal working room, ensure the corrosion fog not to leak.
◆Electric system is separated from water system, avoid water to enter electric control box to damage accessories
◆There is a hole used to drain off fog at the back and bottom of chamber, its damater is 48mm, just used other pipe to connect this hole to drain off the fog from the working room
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Chamber
Sealing Cover
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V shape , the top ange is 100º, prevent condensate water during the test from dropping to specimen surface and affect testing results.
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Atomizing
Tower
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In order to ensure the working room to get uniform fog while spraying, this chamber use a special structure glass nozzle to atomize salt solution absolutely, then fog enter a subuliform tower installed in the working room and spray to all working room uniformly. The installation height of atomizing tower can be adjusted to control spray fog amount precisely.
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Fog Collector
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Fog collectors are tapered funnels whose diameter are 100mm and installed in the working room.At the bottom of the funnel, there is a silicone pipe which connect with graduated cylinder installed outside. These graduated cylinders are used to monitor spray fog amount
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Heating
System
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For working room, heating tube is made of titanium alloy, water vapour heat the working room under the control of P.I.D
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Salt Solution
Supply
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The salt solution prepared well is stored in salt solution reservoir, and flow into supplying container under the water level difference. This supplying container is equipped with an automatic water leveling device which can control automatically the max. water level to keep a certain distance with spray nozzels.
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Humidifying
Tower
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Is made of SUS304# stainless steel, and its temperature can be set from RT-63℃ and heating up time≤60 min, can add water automatically.Water level is monitored and system would alarm once exceed set level value.
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Heater
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Armoured titanium alloy electric heating tube(at the bottom of working room)
Armoured SUS316# electirc heating tube(Humidifying tower)
Heating controlling method:SSR
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Fog Spray System
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Spray Fog
Principle
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Use Bernouilli’s principle to absorb salt solution then atomize it
Air Compressor→Oil-water Separator(first)→Air Storage Tank→Relief Valve→Total Solenoid Valve→Oil-water Separator(second)→Saturator→Pressure Regulating Valve→Solenoid Valve for spraying→Spray Nozzle
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Spray Nozzle
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made of special glass, can control fog amount and spraying angle
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Spray
Pressure
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Spray pressure can be adjusted from 0.07MPa to 0.17 MPa, in order to make sure the spray pressure generated from spray nozzle be within the range of standard requirments, it is divided into two steps, adjust air pressure to 0.2MPa to 0.3 MPa as the first step, then adjust to 0.07MPa to 0.17 MPa under the second step
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Drain away
Fog
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Can drain away fog by manual or set a program to do it. Feed fresh compressed air to working room then drain away the fog of the working room quickly
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Electronic Control System
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Controller
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E5CC digital display temperature controller imported from Omron, Japan. control working room and humidifying tower temperature
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Working
Method
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Worked at fixed value, starting and stopping is timed
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Setting Method
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English menu, input data by key
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Display
Resolution
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0.1℃ (temperature)
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Timer
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Digital display , can set second, minute, 10 minutes, hour, 10 hours , max.is 9,999 hours, min.is 1 second
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Programme
Controller
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Digital display , spray time and interval time can be set freely, infinite cycle. Timing unit: second, minute, 10 minutes, hour, 10 hours(switch freely) max.is 9,999 hours, min.is 1 second.
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Safety Protection Device
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Cabinet
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Over temperature protection, water leakage protection
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Humidifying
Tower
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Over temperature protection, water leakage protection
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Heating
System
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Anti-dry safety protection: all heaters of the cabinet are fitted with a temperature limit protection, which can effectively solve the problem of overheating , heating tube dried , abnormal water supply, short circuit and overload etc.
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Water Supply
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Water level protector for working room, low water level protector for humidifying tower
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Power
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Earth leakage protection, overload and short-circuit protection
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Normas Internacionales:
ISO 4611 《Plastics—Determination of the effects of exposure to damp heat, water spray and salt mist》
ISO 7253 《Paints and varnishes -- Determination of resistance to neutral salt spray (fog) 》
ISO 9227 《Corrosion tests in artificial atmospheres -- Salt spray tests》
ASTM B 117 《Standard Practice for Operating Salt Spray (Fog) Apparatus》
ASTM B368 《Standard Test Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing (CASS Test) 》
ASTM B 380 《Standard Test Method for Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure》
ASTM G85 - 11 《Standard Practice for Modified Salt Spray (Fog) Testing》
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