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Jiangsu Sunzo Spring Elasticity Technology Co., Ltd
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{"title":"Custom DIN 2093 Disc Spring manufactured from 65Mn SUS304 and Inconel718","imgUrl":"https:\/\/img.chinax.com\/nimg\/00\/7f\/3a7d151e87b41fc31715a47e4ae3-200x200-1\/custom_din_2093_disc_spring_manufactured_from_65mn_sus304_and_inconel718_materials_ensuring_performance_and_long_lifespan.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel","Usage":"Industrial, Auto, Furniture, Motorcycle, Home Appliance"}}
{"title":"DIN 2093 Disc Spring delivering energy storage and buffer shock absorption in","imgUrl":"https:\/\/img.chinax.com\/nimg\/7d\/ab\/1c88f5c9a51bd046e747066cb423-200x200-1\/din_2093_disc_spring_delivering_energy_storage_and_buffer_shock_absorption_in_hydraulic_systems_with_limited_axial_space.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"sunzo","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
{"title":"DIN 2093 Disc Spring offering excellent buffer shock absorption and variable","imgUrl":"https:\/\/img.chinax.com\/nimg\/a5\/a2\/1d39e3b7f0f1e4aa7c6b32d178e9-200x200-1\/din_2093_disc_spring_offering_excellent_buffer_shock_absorption_and_variable_stiffness_for_energy_storage_applications.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"SUNZO","Type":"Spring Washer","Material":"Steel"}}
{"title":"DIN 2093 Disc Spring offering elastic support and minimal deformation to enhance","imgUrl":"https:\/\/img.chinax.com\/nimg\/57\/c3\/9fa28f8ff99581a37fecbae982cd-200x200-1\/din_2093_disc_spring_offering_elastic_support_and_minimal_deformation_to_enhance_sealing_performance_in_hydraulic_systems.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"Sunzo","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
{"title":"DIN 2093 Disc Spring with rust resistant blackened coating excellent shock","imgUrl":"https:\/\/img.chinax.com\/nimg\/e6\/2c\/97fee593308c916d5407096b4ee8-200x200-1\/din_2093_disc_spring_with_rust_resistant_blackened_coating_excellent_shock_absorption_and_broad_non_linearity_for_precision_machin.jpg","attrs":{"Minimum Order Quantity":"Negotiable","Model NO.":"sunzo","Function":"Pressed, Phonation, Drive, Restoration, Measurement","Material":"Steel"}}
SUNZO Disc Spring Quality Testing Protocol: Comprehensive Validation for Performance & Reliability Assurance
SUNZO implements a comprehensive multi-tiered quality testing regime that exceeds international standards for disc spring performance validation. Our ISO 17025-accredited testing laboratory conducts over 12 specialized tests across the production lifecycle, ensuring each component meets exacting specifications for critical industrial environments.
Material Integrity Verification
Raw material qualification begins with spectroscopic analysis (OES) to confirm alloy composition within ±0.05% tolerance of ASTM standards. Tensile testing per ISO 6892-1 measures yield strength (>1200 MPa for high-carbon steels) and elongation (>8%), while Charpy impact testing at -40°C ensures fracture toughness (minimum 45 J/cm²).
Dimensional Precision Analysis
Coordinate Measuring Machines (CMM) with 0.001mm resolution inspect critical dimensions: outer diameter (±0.02mm), inner diameter (±0.03mm), thickness (±0.01mm), and cone angle (12°±0.5°). Optical profilometers verify surface finish (Ra < 1.6μm) and edge radius (0.2-0.5mm) to prevent stress concentration points.
Mechanical Performance Testing
Load-Deflection Curve Validation: Using servo-hydraulic test frames (100kN capacity), we generate force-displacement curves per ISO 16148, ensuring spring rate consistency within ±5% across the operating range.
Fatigue Life Assessment: Dynamic testing at 10Hz for 10⁶ cycles under 70% of ultimate load confirms no permanent deformation (>0.01mm) or crack propagation (detected via ultrasonic inspection).
Impact Resistance: Drop-weight testing (5kg mass, 1m drop height) simulates shock loading, with post-test inspection via dye penetrant testing (ASTM E165) to ensure structural integrity.
Environmental Durability Testing
Corrosion Resistance: Neutral salt spray testing (ASTM B117) for 500 hours validates surface treatments (dacromet: >1500 hours protection; phosphating: >500 hours). Cyclic humidity testing (40-95% RH, -40°C to 80°C) accelerates aging effects over 1,000 cycles.
Temperature Stability: Thermal cycling (-196°C to 650°C) in inert atmosphere chambers evaluates load retention (>90% of initial force after 500 thermal cycles).
Batch Consistency Assurance
Statistical Process Control (SPC) monitors production batches with n=30 sampling per lot. Cpk values >1.33 confirm process capability, while Fourier Transform Infrared (FTIR) spectroscopy ensures coating uniformity. Each component receives a unique QR code linking to its complete test report, enabling full traceability from raw material to final inspection.
This rigorous testing protocol has earned SUNZO certification to AS9100D (aerospace), ISO 13485 (medical), and API 6A (oil & gas), with a 99.7% first-pass yield rate. Our quality engineers provide custom testing protocols for specialized applications, including cryogenic performance validation and radiation resistance testing for nuclear applications.
