High-Low Temperature Test Chamber

• Corrosion or Temperature Resistance? Choose the Right Test Chamber for Your Products

  Dec 16, 2025

      In product reliability testing, test chamber selection directly determines result value. While composite salt spray and high-low temperature test chambers are both environmental test equipment, their applications differ greatly. This guide helps you quickly select suitable equipment by testing requirements, application scenarios and core parameters. I. Clarify Core Requirements First: What Problem Do You Need to Solve? The first selection step is clarifying the core purpose—verifying "corrosion resistance" or "temperature change resistance", the essential difference between the two. 1. Choose Composite Salt Spray Test Chamber: When Focusing on "Corrosion Resistance Reliability" For products exposed to high-salt/humid environments or relying on coatings/platings, the composite salt spray test chamber is ideal. It simulates marine/coastal industrial corrosion environments to accurately assess protective system durability. Typical Requirement Scenarios: ① Coastal-used automotive parts (prevent coating peeling/rusting) ②Galvanized hardware (confirm salt spray corrosion resistance duration) ③ Marine engineering equipment (test overall salt corrosion resistance) 2. Choose High-Low Temperature Test Chamber: When Focusing on "Temperature Change Stability"     For products working in extreme/frequent temperature changes, the high-low temperature test chamber is essential. It simulates high-low temperature cycles to detect functional failures and structural deformations caused by temperature shifts. Typical Requirement Scenarios: • Mobile phone batteries (test low-temperature discharge performance) • Industrial controllers (ensure high-temperature parameter stability) • Outdoor instruments (assess temperature-induced shell cracking risk)   II. Quick Matching by Industry and Product Type Product characteristics in different industries determine testing priorities. The following classifications enable quick selection. 1. Industries and Products Prioritizing Composite Salt Spray Test Chamber Core feature: Products in high-salt environments or with protective coatings as key quality indicators. • Automotive: Body parts, chassis components, electroplated decorations • Hardware Electroplating: Galvanized/chromium parts, tools, sanitary hardware • Marine/Shipbuilding: Ship parts, marine equipment, port machinery • Outdoor Equipment: Communication base stations, PV brackets, lamp housings 2. Industries and Products Prioritizing High-Low Temperature Test Chamber Core feature: Product performance sensitive to temperature or requiring extreme temperature adaptability. • Electronics: Chips, circuit boards, sensors, home appliances • New Energy: Lithium batteries, PV modules, energy storage devices • Military/Aerospace: Military electronics, aerospace components • Medical Devices: Portable medical equipment, outdoor emergency tools   III. Key Parameter Checklist for Selection After confirming the general direction, match key parameters to avoid cost waste or insufficient performance. 1. Composite Salt Spray Test Chamber: Focus on "Corrosion-Related Parameters" • Salt Spray Type: NSS/ASS/CASS (select per standard; CASS for automotive parts) • Deposition Rate: 0.5-2mL/(80cm²·h) (comply with test standards) • Additional Functions: Temperature-humidity cycle/drying (as needed) • Chamber Material: PVC/PP (strong corrosion resistance) 2. High-Low Temperature Test Chamber: Focus on "Temperature Change-Related Parameters" • Temperature Range: Conventional -70℃~150℃ (extendable for special needs) • Change Rate: 5℃/min (rapid) for impact resistance; conventional for daily tests • Humidity Function: Temperature-humidity type (if needed); pure high-low temperature otherwise • Chamber Volume: Ensure product fit with ≥5cm wall distance (temperature uniformity)   IV. Selection Pitfalls: Common Misunderstandings • Misunderstanding 1: Avoid redundant functions—no complex temperature control for salt spray tests; no humidity function for temperature-only tests • Misunderstanding 2: Match parameters to actual needs—overly wide temperature ranges increase costs unnecessarily • Misunderstanding 3: Comply with industry standards (e.g., ISO 9227 for automotive) to ensure valid results

  Balises chaudes : Chambre d'essai d'humidité à haute et basse température fabricants de chambres d'essai environnementales chambre de simulation environnementale High-Low Temperature Test Chamber Environmental Chamber Composite Salt Spray Test Chamber

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• Fundamental Differences Between Composite Salt Spray Test Chamber and High-Low Temperature Test Chamber

  Dec 15, 2025

  1. Core Test Purpose     The composite salt spray test chamber centers on simulating salt spray corrosion environments, with optional integration of temperature and humidity conditions. It is mainly used to test the corrosion resistance of materials, components and finished products, especially for evaluating the durability of coating/plating protection systems and the reliability of products in marine or high-salt industrial environments.     The high-low temperature test chamber focuses on simulating extreme temperature and temperature change environments. Its core goal is to verify products’ temperature resistance, structural stability and performance consistency under high/low temperature and temperature cycle conditions, such as testing the working status of electronic components, thermal expansion/contraction resistance of metal parts, and temperature-induced aging of plastic components. 2.Test Environment Composition     The core environmental medium of the composite salt spray test chamber is salt spray (typically formed by atomizing 5% sodium chloride solution). It can achieve cyclic composite environments including salt spray, constant temperature and humidity, and drying stages. Some models also control key parameters like salt spray deposition rate and spray pressure, with the overall environment built around "corrosion triggers".     The high-low temperature test chamber’s core is temperature (covering -70℃~150℃ or a wider range). Some models integrate humidity control (high-low temperature and humidity test chambers). It precisely regulates internal temperature and humidity via compressors, heaters, humidifiers and other components, without salt spray-related media or systems. 3.Applicable Test Objects & Industries     The composite salt spray test chamber is mainly for products requiring corrosion protection such as auto parts, hardware electroplated parts, marine engineering equipment, outdoor communication devices, and aerospace fasteners. It is widely used in automotive, shipbuilding, hardware, and electronic protection industries.     The high-low temperature test chamber has a broader scope, covering all products that need temperature adaptability verification, including electronic appliances, semiconductor components, new energy batteries, instruments, military equipment, and household appliances. It is a basic environmental testing device for electronics, new energy, military, and consumer electronics industries. 4. Core Technical Structure     The composite salt spray test chamber is equipped with a salt spray generation system (spray tower, brine tank, nozzle) and corrosion fluid recovery/neutralization devices. Its chamber body requires high corrosion resistance (usually made of PVC, PP or special stainless steel) to prevent self-corrosion by salt spray.     The high-low temperature test chamber’s core is a temperature control system (compressor, condenser, evaporator, heater). Models with humidity function include humidification and dehumidification modules. The chamber focuses on thermal insulation (with polyurethane foam insulation layer) and has no special corrosion-resistant design. 5.Test Evaluation Indicators     Key evaluation indicators for composite salt spray tests are corrosion levels, such as blistering/peeling area of coatings, rust grade of base metals, and the correlation between test duration and corrosion failure time.     Evaluation indicators for high-low temperature tests focus on product performance and structural changes, including functional normality under extreme temperatures, parameter drift range, deformation/cracking of structural parts, and mechanical property attenuation of materials.

  Balises chaudes : Chambre d'essai à haute et basse température fabricants de chambres d'essai environnementales chambre de simulation environnementale chambre d'essai d'environnement de température High-Low Temperature Test Chamber Composite Salt Spray Test Chamber

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• High-Low Temperature and Humidity Test Chamber: Comprehensive Safety Protection

  Nov 14, 2025

  Widely used in electronics, automotive, aerospace, etc. It tests product reliability by simulating extreme environments and is key equipment for product quality and safety. 1. Refrigeration system safety protection Compressor overpressure protection: Activates pressure relief when overpressure, preventing explosion and ensuring safety. Compressor overheating protection: Monitors temperature in real time, cuts power when exceeding threshold to avoid burnout and extend life. Compressor over-current protection: Monitors current, cuts power when exceeding rated value to prevent overload or motor damage. 2. Test area safety protection Adjustable over-temperature protection: Flexible threshold setting, automatically controls temperature (reduces power, starts cooling) when exceeding, protecting samples and equipment. First-layer high/low temperature over-temperature protection: Sets high/low temperature protection values for operating temperature, stops heating/cooling when exceeding range. Second-layer high-temperature over-temperature protection: Electronic device with high-precision detection, cuts heating power when exceeding first-layer range. Third-layer high-temperature over-temperature protection: Last barrier, cuts all heating power and alarms when first two layers fail. Fault protection: Cuts control power when faulty, indicates cause and outputs alarm for easy troubleshooting. 3. Other safety protections Total power phase sequence and open-phase protection: Monitors phase sequence and open-phase, cuts power when abnormal to prevent damage. Short-circuit protection: Quickly cuts circuit (fuse blowing, breaker tripping) during short circuit to avoid fire, etc. Leakage/surge protection: ELB prevents electric shock, fuse protects circuit, RC device suppresses surges. Water-cut and dry-burning protection: Cuts power for humidity-related equipment and electric heating when water is cut off to prevent dry burning. 4. Summary     The safety protection system of the high-low temperature and humidity test chamber covers core working units and key auxiliary links, forming a comprehensive and multi-level protection closed loop. Through accurate monitoring, rapid response and effective intervention, each protection device not only ensures the long-term stable operation of the equipment and extends its service life, but also safeguards the safety of test samples and personnel operation. It serves as the core support for reliable test processes and accurate results, building a solid safety barrier for product quality verification.

  Balises chaudes : chambre d'essai d'humidité fabricants de chambres d'essai environnementales chambre de simulation environnementale chambre d'essai d'environnement de température High-Low Temperature Test Chamber High-Low Temperature and Humidity Test Chamber

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