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TM-1 bimetallic strip (0.1mm×100mm), a precision-engineered functional material from Huona New Material, is a thin-gauge composite strip composed of two dissimilar alloys with distinct thermal expansion coefficients—bonded via our proprietary hot-rolling diffusion technology. Optimized for ultra-thin applications requiring both miniaturization and reliable thermal actuation, this strip combines a fixed 0.1mm thickness (ideal for compact devices) with a 100mm standard width (suited for large-area temperature sensing or batch processing). Leveraging Huona’s expertise in thin-gauge composite manufacturing, the TM-1 grade delivers exceptional thermal sensitivity, uniform deformation, and strong interfacial bonding—making it a core component for micro-thermostats, precision temperature compensators, and miniaturized overheat protection devices.
Composite Structure: Typically features a high-expansion layer (e.g., Cu-Mn-Zn alloy, α≈20×10⁻⁶/℃) and a low-expansion layer (e.g., Fe-Ni 36 alloy, α≈1.6×10⁻⁶/℃), with interfacial shear strength ≥145 MPa (tested per GB/T 14985)
Compliant Standards: Adheres to GB/T 14985-2017 (Chinese standard for bimetallic strips) and IEC 60694 for thermal control components
Manufacturer: Huona New Material, certified to ISO 9001 and ISO 14001, with in-house thin-gauge rolling and precision slitting capabilities
Key Advantages (vs. Standard & Thick-Gauge Bimetallic Strips)
The TM-1 strip (0.1mm×100mm) stands out for its ultra-thin design and large-width suitability:
Ultra-Thin Precision: 0.1mm thickness (30% thinner than common 0.15mm strips) enables integration into micro-devices (e.g., wearable sensors, miniaturized circuit breakers) while maintaining strict thickness uniformity (±0.003mm) to avoid uneven thermal deformation.
Enhanced Thermal Sensitivity: High expansion coefficient ratio (~12.5:1) delivers a temperature-induced curvature of 12-15 m⁻¹ (at 100℃ vs. 25℃)—20% higher than thick-gauge strips (0.3mm+), ensuring fast actuation in low-power devices.
Large Width for Batch Processing: 100mm standard width matches industrial stamping panel sizes, allowing simultaneous production of 50+ micro-components (e.g., thermostat contacts) per strip—reducing processing time by 40% vs. narrow-width strips.
Strong Interfacial Bonding: Proprietary diffusion bonding technology eliminates delamination even after 8,000 thermal cycles (-40℃ to 180℃)—solving the common issue of thin-gauge bimetallics (≤0.1mm) being prone to layer separation.
Excellent Machinability: Ultra-thin gauge enables laser cutting into intricate micro-shapes (minimum feature size: 0.5mm) and tight bending (radius ≥1× thickness) without cracking—critical for automated assembly of compact devices.
Technical Specifications
Attribute
Value (Typical)
Thickness
0.1mm (tolerance: ±0.003mm)
Width
100mm (tolerance: ±0.15mm)
Length per Roll
50m - 200m (cut-to-length available: ≥50mm)
Thermal Expansion Coefficient Ratio (High/Low Layer)
~12.5:1
Operating Temperature Range
-40℃ to 180℃ (continuous); Short-term: up to 220℃ (≤30 minutes)
Actuation Temperature Deviation
±2℃ (at rated points: 50℃ - 150℃)
Interfacial Shear Strength
≥145 MPa
Tensile Strength (Transverse)
≥470 MPa
Elongation (25℃)
≥10%
Resistivity (25℃)
0.17 - 0.30 Ω·mm²/m
Surface Roughness (Ra)
≤0.6μm (mill finish)
Product Specifications
Item
Specification
Surface Finish
Mill finish (oxide-free) or passivated (optional, for 72-hour salt spray resistance)
Flatness
≤0.06mm/m (critical for uniform stamping and thermal deformation)
Bonding Quality
100% interfacial bonding (no voids >0.03mm², verified via X-ray inspection)
Solderability
Optional tin-plating (2-3μ thickness) for enhanced solderability in micro-connections
Packaging
Vacuum-sealed in anti-oxidation bags with desiccants; plastic spools (120mm diameter) to prevent strip warping
Customization
Adjustment of actuation temperature (40℃ - 180℃), width trimming (minimum 10mm), and pre-stamped micro-patterns
Typical Applications
Micro-Thermostats: Temperature control in wearable devices (e.g., smart watches), medical insulin coolers, and miniaturized HVAC systems (0.1mm thickness fits slim designs).
Precision Overheat Protection: Circuit breakers for lithium-ion batteries (e.g., drone batteries, wireless earbuds) and micro-motors (fast actuation prevents thermal runaway).
Large-Area Sensing: Thermal profiling strips for PCB boards (100mm width covers multiple components) and flexible electronics (uniform temperature response across the strip).
Consumer Electronics: Thermal actuators for laptop heat sinks, printer fuser controls, and smartphone battery protection modules.
Industrial Micro-Devices: Temperature-compensating shims for MEMS sensors (e.g., pressure sensors in autonomous vehicles) and tiny thermal switches for IoT devices.
Huona New Material subjects every batch of TM-1 strips (0.1mm×100mm) to rigorous testing: interfacial shear strength verification, 1000-cycle thermal stability tests, and laser-based dimensional inspection. Free samples (100mm×50mm) and thermal curvature vs. temperature curves are available upon request. Our technical team provides tailored support—including alloy layer optimization for specific actuation temperatures and micro-stamping process guidelines—to ensure the strip meets the demands of compact, high-precision applications.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2008
Total Annual:
8000000-100000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig... Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig...
