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Infrared Heating For Steel Paint Curing, Infrared Drying Solution For Water Based Paints, Inks, Adhesives and Coatings
05
2025
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06
Questions About Quartz Infrared Heating Lamps Used in high-vacuum environments (P<1×10⁻⁵ Pa)
Original Questions about Quartz Infrared Heating Lamps Used in high-vacuum environments (P<1×10⁻⁵ Pa) : Arc prevention with voltage ≤220V (preferably 110V). Wire selection: Fiberglass-insulated wires vs. bare nickel wires with high-frequency ceramic standoffs? Can gold-plated or ceramic reflective coatings be applied? Risks of coating volatilization/peeling causing arcing or other issues at 500°C? For a 1m heating tube, should cold-end length be 75mm or 125mm? Advantages of 125mm? Will it reduce sealing part temperature? Connector recommendations for easy wiring and tube replacement. Answer 1. Arc Prevention & Voltage Selection (220V vs. 110V) Critical Issue: Minimal gas molecules in high vacuum elevate breakdown voltage, but field emission (micro-arcing) may occur due to small electrode gaps or surface contamination. Solution: Prefer 110V operation; Maintain ≥10mm gap between cold-end wires. Answer 2. Wire Selection: Insulated vs. Bare Wires with Ceramic Standoffs Wire Option Advantages Disadvantages Recommendation Fiberglass-insulated Easy installation, low cost Outgassing contaminates vacuum; embrittlement at high temps Unsuitable for high vacuum Bare nickel + Al₂O₃ ceramics No outgassing; withstands >1000°C; reliable insulation Complex assembly; ceramic must resist thermal shock Optimal for high vacuum Answer 3. Reflective Coating Risks (Gold vs. Ceramic) Gold coating: Volatilizes significantly at 500°C (>10⁻⁷ g/cm²·s), contaminating vacuum and depositing on electrodes to cause short-circuit arcing. Ceramic coating: CTE mismatch (e.g., SiO₂ CTE=0.5×10⁻⁶/K vs. quartz CTE=0.55×10⁻⁶/K) causes peeling; loose particles trigger discharges. Alternatives: No coating for quartz infrared lamps Integrated quartz reflector: Installing high temperature resist reflect mirror Answer 4. Cold-End Length Selection (75mm vs. 125mm) Thermal Analysis:Target pinch sealing temperature ≤150°C (below molybdenum oxidation threshold). Simulation Results for reference: Cold-End Pinch Sealing Temp. Risk 75mm 200~250°C High (Mo oxidation) 125mm 80~120°C Safey Advantages of 125mm cold ending: Lowers temperature to safe range (<150°C). Reduces quartz cracking from thermal stress. Enhancement: Add water cooling system around pinch sealing part Answer 5. Connector Recommendations Requirements: Vacuum-compatible, high-temp resistant, low contact resistance, quick-disconnect. Solution: Type: Metal-sealed quick-disconnect connectors (e.g., CF flange derivative). Materials: Oxygen-free copper contacts + 304 stainless steel housing. Insulation: Al₂O₃ ceramic spacers. Summary of Recommendations Issue Solution Key Parameters Operating voltage 110V Electrode gap ≥10mm Wiring Bare nickel wire + Al₂O₃ ceramic standoffs Ceramic purity >99.6% Reflective coating Avoid coatings; use integrated quartz reflector N/A Cold-end length 125mm (+ heat sinks or water cooling) Pinch seal temp. <150°C Connectors Metal-sealed quick-disconnect Contact resistance <1mΩ
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Infrared Heater for local annealing of injection molded parts
Infrared heating for local annealing of injection molded parts During the cooling process, injection molded parts may generate internal stress due to uneven shrinkage, resulting in deformation or cracking. Local annealing eliminates stress and improves dimensional stability by heating specific areas. Traditional annealing uses an oven for overall heating, but it is inefficient and may affect the performance of other parts of the part. Infrared lamp selection: fast medium-wave infrared (wavelength 1.4-2μm), with moderate penetration, suitable for fast and uniform heating of ABS materials. Heating process: The part enters the infrared heating zone through a conveyor belt, and the focused lamp radiates the target area, and the temperature is set to 110-130℃ (lower than the melting point of the material). Heating time: 10-15 seconds, and precise temperature control curve is achieved through PLC control. The annealing cycle is shortened from 30 minutes in a traditional oven to 20 seconds, and production efficiency is increased by 90%. The part yield is increased from 85% to 98%, and no secondary processing is required. Lamp Type: Shortwave infrared (1.0-1.4μm): suitable for rapid surface heating (such as deburring) Fast medium-wave infrared (1.4-2.0μm): balance penetration depth and heating uniformity (such as rapid annealing) Power density: usually 10-50 W/cm², adjusted according to the heat capacity of the material. Comparison with Conventional Methods Parameter Infrared Heating Traditional Methods (Oven/Mechanical) Speed Seconds (1–30 s) Minutes to hours Energy Efficiency Low (directional heating) High (bulk heating/mechanical energy) Precision Millimeter-level positioning, controlled Dependent on manual/mold accuracy Part Suitability Complex geometries, thin-walled parts Simple geometries, thick-walled parts Environmental Impact No dust, low noise Dust from wear, noise pollution
12
Functions and Flexible Design of Infrared Heating Radiation Tubes in Solar Cell String Soldering
Non-contact Heating: Directly heats soldering points via infrared radiation to avoid mechanical contact damage to the cells. Precise Temperature Control: Rapid heating and stable temperature maintenance ensure complete melting of solder (e.g., solder paste) without overheating. Uniform Heating: Reduces thermal stress and prevents microcracks or efficiency loss in cells caused by localized high temperatures. II. Primary Objectives Reliable Electrical Connection: Achieves metallurgical bonding between cell busbars and ribbons (copper or tin-plated) through molten solder. Enhanced Soldering Efficiency: Adapts to high-speed automated production lines, meeting demands for high precision and consistency. III. Soldering Process Solder Selection: Use low-temperature solder paste (e.g., Sn-Pb or Sn-Ag-Cu alloys) with a melting point typically between 180–250°C. Preheating: Gradual temperature rise via infrared heating tubes prevents thermal shock-induced cell cracking. Peak Heating: Rapidly reach the solder’s melting point (e.g., 220°C) to enable solder flow and wetting of ribbons and cell busbars. Cooling and Solidification: Solder solidifies after heating stops, forming a stable connection. Pressure Assistance: Some equipment applies slight pressure (e.g., vacuum chucks or rollers) to ensure tight contact between ribbons and busbars. Infrared Heating Tube Design for Large-Sized Panels (4m×4m) 1. Length Design Coverage of Soldering Area: For continuous 4m soldering paths (e.g., full-panel soldering), design infrared tubes with a 4m emission length to enable single-pass soldering. 2. Power Design Example Solution (4m×4m Panel only for reference) Parameter Design Value Total heating tube length ≥4m (dual-tube design) Single-tube power 10–12kW Radiation wavelength Short-wave infrared (1–2μm, strong penetration capability) Temperature accuracy ±2°C (PID closed-loop control) Shortwave Twin Tube Quartz IR Lamp Twin Tube Short Wave Infrared Heating Lamp are widely used in high-efficient industrial fast heating applications. ①：Metal Heating For Aluminum Foil, Aluminum Casting, Aluminum Extrusion ②：Welding equipment such as copper plate or copper wire welding, electronic components wave soldering ③：Photovoltaic industry such as solar cell welding ④：Heating thin iron or steel plates ⑤：Preheating before sheet metal cutting ⑥：Other heating application such as environment quick heating for thawing or scientific research According to the configuration of different heating filament design and ending cables, twin tube infrared lamp can be produced as the following common filament configuration. 1: Cables can be one side connection or two sides connection 2: Different heating length designed for partial heating purpose 3: Length is up to 6 meter long and widely used in industrial heating process, such as glass cutting, plastics forming or lamination, auto painting and etc.. We are customized IR heating lamp manufacturer and we also provide one-stop service for your heating solution. Welcome to inquriy our high efficient heating infrared lamps. If you need twin tube IR lamps with other specifications, please refer the attached technical drawing and contact us for confirmation.
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04
Infrared Heating to Remove Burrs From Injection Molded Parts
During the injection molding process, burrs (flash) may form on the edges of parts due to mold gaps or excessive material fluidity. Traditional methods for deburring include mechanical trimming (knife, stamping), freezing deburring (low temperature embrittlement) or manual grinding, but these methods have problems such as low efficiency, damage to the surface of parts or high costs. Infrared heating technology uses non-contact precision heating to avoid mechanical damage, soften or melt burrs, making them easy to remove or automatically fall off, especially suitable for precision parts or thermoplastic materials (such as ABS, PP, PC, etc.). 1. Part positioning: The robot removes the injection molded part from the mold and fixes it to the infrared heating station to achieve fully automatic deburring. 2. Local heating: Heating is only for the burr area, and energy consumption is more than 50% lower than traditional hot air heating. Use short-wave infrared lamps (wavelength 0.8-1.4μm) to radiate the burr area in a directional manner, and the heating time is usually 1-5 seconds (adjusted according to the material thickness). Temperature control: The infrared lamp power is adjustable, and it is monitored in real time with a thermocouple or infrared thermometer to ensure that the burr temperature rises to the softening point of the material (such as about 105-120°C for ABS), but avoid overheating of the main body of the part. 3. Burr removal: The softened burrs are automatically removed by slight mechanical vibration, air flow blowing or a touch of the robot. For complex structural parts, laser cutting or robot flexible grinding can be combined for secondary processing.
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Industrial Glue Drying By Infrared Shortwave Quartz Heating Tube
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EDEN кварцевые инфракрасные лампы ИК-обогреватели - это промышленные элементы инфракрасного сушки
EDEN кварцевые инфракрасные лампы ИК-обогреватели - это промышленные элементы инфракрасного сушки, использующие кварцевое излучение. Эти обогреватели обеспечивают высокоэффективное и целенаправленное инфракрасное излучение, которое идеально подходит для различных промышленных процессов, таких как сушка материалов, отверждение покрытий, нагрев и другие применения, требующие точного и быстрого тепла.
03
Drying and Infrared Heating Drying
1. Drying and Infrared Heating Drying Definition of Drying Drying is the process of removing moisture and volatile components from materials through evaporation, sublimation, or other means. The primary purposes of drying are to prevent spoilage, improve storage stability, extend shelf life, and meet subsequent processing requirements. Traditional drying techniques (such as hot air and steam drying) rely on medium-based heat transfer, which often results in high energy consumption, low efficiency, and uneven heating. Principle of Infrared Heating Drying Infrared heating drying utilizes infrared radiation to directly transfer energy to an object, penetrating the surface and causing water molecules to absorb energy and vaporize rapidly, thereby achieving fast and uniform drying. The wavelength of infrared radiation (typically ranging from 0.78 to 1000 microns) determines the energy penetration depth, and different wavelengths have varying absorption effects on materials. Traditional heating elements, such as milky quartz tubes, ceramic heaters, and stainless steel heating tubes, generate heat through resistance wires and transfer it via conduction, resulting in low thermal efficiency. Additionally, these elements tend to oxidize over time, leading to energy waste due to reduced heating efficiency. In contrast, transparent quartz infrared heating tubes with reflective coatings utilize vacuum-sealed tungsten alloy filaments that withstand temperatures up to 2500°C. The heating element is enclosed within a high-purity transparent quartz tube that transmits 99% of infrared radiation energy. The high-reflectivity coating reflects 50% of the infrared energy, enabling directional radiation heating, which significantly enhances energy efficiency. 2. Applications of Infrared Heating Drying in Various Industries Packaging Film：DryingInfrared heating precisely dries coatings, preventing film deformation caused by hot air. Drying speed is increased by three times. Fruits and Vegetables Dehydration：Retains heat-sensitive components such as Vitamin C (loss rate <5%, compared to >15% with traditional hot air drying). Surface Sterilization：Short-term high-temperature treatment effectively inactivates pathogens like Salmonella while preventing excessive heating of food. Sterilization of Instrument Packaging：Non-contact heating prevents secondary contamination, achieving a sterilization efficiency of 99.9%. Tablet Drying：Ensures uniform heating, preventing tablet cracking and maintaining moisture content within ±0.5%. Moisture Prevention for Electronic Components： Effectively dries circuit board packaging films, reducing humidity below 100 ppm to prevent oxidation. Automobile Coating：Infrared preheating of paint shortens curing time to one-third of traditional processes and reduces orange peel defects. 3. Example: Infrared Drying in Leather Processing Infrared drying offers the following advantages in leather processing: Rapid Drying Infrared radiation partially penetrates the leather, creating a temperature gradient between the surface and the interior. This accelerates moisture diffusion from the inside out, significantly shortening drying time. Uniform Heating Both the surface and interior of the leather absorb infrared radiation, ensuring even drying. This improves leather color consistency, enhances physical properties, and boosts final product quality. High Energy Efficiency Compared to traditional steam or hot air drying, infrared drying equipment is simpler in structure and consumes less energy. Energy savings can exceed 50%, while the compact design allows for easy operation.
