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China, Chinese Atmosphere Furnace for Copper Paste Resistance and Laminated Capacitor1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Heater Heat ExchangerHeating EquipmentAtmosphere FurnacePulling and Inserting Muffle
Hengli Eletek Co., Ltd.
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Product Description 1. Typical application:Typical application It is mainly used for high temperature firing and heat treatment of copper paste resistance, laminated capacitor and other similar products.2. Furnace specification and structure:CodeNameLengthNoteATotal length12610mm BLoad table600mm CFurnace frame11410mm DEntrance vestibule part460mmIncluding air curtainEEntrance insulation part150mmCeramic fiber insulationFHeating part4050mm9 temperature zones,the length of each zone is 450 mm, and power of 1-4 zone is 14 kW each, the power of 5-9 zone is 12 kW eachGFree cooling part600mmNo heating element, thermal insulation materialHExit insulation part150mmThermal insulation transition of ceramic fiber materialINatural cooling section300mm JWater cooling section 5700mmCooling water jacket, The water flows in from the bottom to the top, the flow rate is adjustable, and the water temperature is detected at one point, in which the water jacket in Section 1 flows in and out separatelyLEquipment height1350mm KEquipment operation panel positionChamberUse sub chamber and mother chamber and materialis SUS310S-t6. The passing height of the product is 80 mmFurnace weightAbout 6000kgEffective dimension of furnace520*80mmDimensions12610×1500×1350mm(L×W×H), excluding foundation, chimney and indicator lightAppearance colorOutside panel uses high temperature spraying coating and off-white color. RAL7035 3. Thermal system:Rated temperature850oCMaximum temperature900oCHeating elementFEC heating boardHeating power 116kWHeat preservation power of empty furnace≤40kWNumber of temperature zones9 zonesTemperature control points18 points (Each temperature is controlled by upper and lower points, and each heating plate can be output in proportion to the left, middle and right)ThermocoupleK typeSurface temperature rise< 35 oC (RT+35oC)Temperature control stability±1oCTemperature uniformity± 2 oC (constant temperature zone)4. Transmission system:Belt width520mmBelt materialSUS310SBelt specificationB301015Maximum load80kg / m2 (excluding belt weight)Transmission modeFriction drive with large wrap angleSpeed range40 ~ 200mm/min, typical belt speed 90mm/min, variable frequency stepless speed regulationDrive systemThe drive control adopts frequency converter to drive the motor, which is controlled by reducer, and the speed is continuously adjustableTransmission structureBelt conveyor device: to drive the driving and drived wheel through chain and sprocket wheel, and then generate the friction force by driving wheel and the belt drive the belt running. There is a belt deviation guide device on the both sides at the entrance and exit.Belt cleaning modeUltrasonic cleaning machine timing automatic cleaning, with drying5. Atmosphere system: Atmosphere control systemIncluding nitrogen gas pipes, oxygen pipes, air gas pipes, detection gas pipe, exhaust system, nitrogen pipe and detection pipeGas inlet pipe:11 channels of nitrogen are introduced and controlled by rotameter. The measuring range of each channel is 24~240L/min2. 1 channels of air are introduced and controlled by mass flow meter (MFC). The measuring range is 0~500mL/min.3. The auxiliary exhaust compressed air is 4 channels, controlled by float flowmeter, with a range of 12-120L/min. The actual pumping pressure is displayed by the differential pressure gaugeCodeNameExplainAEntrance curtainsTo prevent external air from entering the furnace, the inlet air curtain is divided into two parts, and the air volume of the two parts can be adjustedBFirst temperature zone gas inletIt is used for normal fresh nitrogen supplement in the first temperature zoneCSecond temperature zone gas inletIt is used for normal fresh nitrogen supplement in the second temperature zone, and appropriate amount of oxygen can be mixed according to the process requirements. (this air inlet point can be filled with air at the same time, and the flow can be controlled through the mass flowmeter)DThird temperature zone gas inletIt is used for normal fresh nitrogen supplement in the third temperature zoneEFourth temperature zone gas inletIt is used for normal fresh nitrogen supplement in the fourth temperature zoneFHigh temperature gas inletIt is used to feed nitrogen into the high-temperature area to form a certain nitrogen curtainGFree cooling gas inletIt is used to feed nitrogen into the high-temperature area to form a certain nitrogen curtainHCooling gas inlet 1It is used to control the gas flow direction in the chamber and prevent the resin from polluting the product firing in the high temperature zoneICooling gas inlet 2It is used to control the gas flow direction in the chamber and prevent the resin from polluting the product firing in the high temperature zoneJCooling gas inlet 3It is used to control the gas flow direction in the chamber and prevent the resin from polluting the product firing in the high temperature zoneKExit curtainsPrevent outside air from entering the furnace1Auxiliary exhaust gas inlet in the first temperature zoneCompressed air is used to assist the exhaust, and a variable diameter venturi is installed at the top. The exhaust volume is controlled by the flow meter2Auxiliary exhaust gas inlet in the second temperature zoneCompressed air is used to assist the exhaust, and a variable diameter venturi is installed at the top. The exhaust volume is controlled by the flow meter3Auxiliary exhaust gas inlet in the third temperature zoneCompressed air is used to assist the exhaust, and a variable diameter venturi is installed at the top. The exhaust volume is controlled by the flow meter4Auxiliary exhaust gas inlet in the fourth temperature zoneCompressed air is used to assist the exhaust, and a variable diameter venturi is installed at the top. The exhaust volume is controlled by the flow meterDetection gas pipe: equipped with two oxygen analyzers, switched by solenoid valveGas sourceOxygen content ≤ 5ppmHeating zoneOxygen content :25ppm-250ppm ,Adjustable rangeHigh temp zoneOxygen content ≤ 10ppm+ oxygen content of gas sourceCooling zoneOxygen content ≤10ppm+oxygen content of gas sourceExhaust system4 exhaust chimneys are set in the pre-heating section 6. Cooling system:Cooling structureWater jacketCooling modeWater cooling7. Safety protection:Stop buttonOne stop button is set at each end plate of the inlet and outlet. After pressing the button, the belt stops runningAlarm indicationOver temperature, temperature deviation, belt slip, over load, thermocouple broken, low pressure, high pressure , oxygen content sound and light alarmSafe temperature rise rate ≤3oC/min8. Temperature control system:Temperature measuring Use K type thermocouple independent measuring and control on the temperature control point of each zone.Control instrumentIt is controlled by the temperature module. It has multiple alarm protection functions, such as high temperature upper limit alarm, low temperature lower limit alarm, thermocouple failure indication, etcHeating controlThe heating part is supplied by several AC contactors in groups to reduce the instantaneous current impact of the equipment on the power grid.control mode SCROver temperature treatmentWhen over temperature occurred in some zones, over temperature alarm system in corresponding zones immediately send audible and visual alarm signal and meanwhile the heating of this zone is cut off, the buzzer sounds alarmComputer control systemUse DCS control system,Lower single loop intelligent instrument control, upper industrial control computer monitoringIndustrial computer can carry out multiple programs savingReal-time temperature and alarm record, data saving and printing.The computer control system has the function of slope temperature rise, effectively extending the service life of muffle tubeThe furnace temperature calibration function is provided to better fit the process requirements, and the temperature curve can be displayed in real time
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