弹簧产品的热处理一般可分为中间热处理和最终热处理两类：前者有退火(等温退火、再结晶退火等)、正火及索氏体化处理。主要目的是软化，为冷拔工序准备良好的金相组织；后者有铅浴淬火、油淬火-回火、形变热处理及贝氏体等温淬火等。除冷拔弹簧钢丝通过铅浴淬火后经过多次拉拨达到所需的力学性能外，其他硬态弹簧钢丝都是通过热处理达到所要求的力学性能的。

   生产弹簧钢丝的主要原料是热轧盘条(即盘圆线材)，盘条质量的好坏直接影响弹簧钢丝的质量。盘条往往存在着各种表面缺陷，如椭圆或其他异形、飞边、折叠、鳞皮、凹坑及刻痕，甚至有表面裂纹，表面脱碳更属常见的现象。线材内部缺陷则有缩孔、疏松、偏析、气孔及非金属夹杂物等。这些缺陷不仅影响拔丝的生产过程，而且直接影响弹簧钢丝的质量。为提高钢丝质量，可对盘条进行剥皮处理。

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Spring Tension Compression Torsion Fatigue Stiffness Properties Testing Machine；Battery Spring Tester；Sofa Spring Tester；HRJ Tester；Micro Spring Tester；Little Spring Tester；Load switch Spring Tensile Compression Tester；Circuit-breaker Spring Tensile Compression Tester；Spring Clamp Compression Stiffness Tester；Wavy Plate Spring Compression Tester；Side Ripple Spring Compression Stiffness Tester；Computer Spring Tensile Compression Testing Machine；Two Spring Tensile Compression Tester；Computer Gas Spring Tensile Pressure Tester；Nitrogen Gas Spring Pressure Tester；Gas Springs Tensile Compression Tester；Desktop Spring Tension Compression Tester；Main Steam Safety Valve Spring Load Tester；Vehicle Spring Compression Tester；Spring Transverse Stiffness Tester；Spring Transverse Stiffness Load Tester；Spring Vertical Dynamic Stiffness Tester；Air Spring Stiffness Air Tightness Tester；Air Spring Vertical Horizontal Transverse Stiffness Fatigue Tester；Railway Vehicle Air Spring Static Stiffness Testing Machine；Air Spring Two-Dimensional Stiffness Fatigue Tester；Rubber Spring Two-Dimensional Stiffness Fatigue Tester；Spring bumper Tension Compression Tester；Steel Helical Spring Compression Tester；Railway Bogie Coil Spring Tester；Railway Vehicle Draft Gears Static Load Tester；Air Suspension Air Spring High Low Temperature Fatigue Life Tester；Commercial Vehicles Cab Air Spring Fatigue Life Tester；High Speed Train Shock Absorber Fatigue Life Tester；Railway Vehicle Shock Absorber Fatigue Life Tester；Helical Spring Compression Testing Machine；Coil Spring Compression Tester；Automobile Leaf Spring Compression Tester；Bow-spring Casing Centralizers Tester；Multi position Spring Fatigue Tester；Ten Position Helical Spring Fatigue Tester；Two Gas Springs Fatigue Tester；Mattress Spring Fatigue Life Tester；Helical Spring High Low Temperature Fatigue Tester；Gas Spring High Low Temperature Fatigue Tester；Desktop Spring Torsion Tester；Computer Spring Torsion Tester；Spiral Spring Torsion Fatigue Tester；spring shock absorber force-displacement characteristic tester；Explosive Material Compression Molding Strength Tester；Pliers and Nippers Bending Torsion Shear Force Tester；Oil-immersed Transformer Corrugated Oil Storage Tank Fatigue Test Bench；Transformer Ripple Oil Conservator Withstand Experimental deformation Automatic detection Device；Composite Insulator Component Tension Compression Bending Torsion Test System；Composite Insulator Component Tension Compression Bending Torsion Test System；Electric Cables and Wires Horizontal Tensile Testing Machine；Clamp grip force on ground wire conductor Tester；Composite Insulator Core Stress Corrosion Tester；Cable Tension Test Sleeve Forming Rapid Hydraulic Machine；Power Electronics Energy Power Electrical Engineering Test System；Couplings Torque Pre Grinding Calibration Stiffness Fatigue Test Bench；Double Hydraulic Cylinder Lift FIBC Automata Load Drop Tester；Automated Intelligent Test System；