High- and Low-Temperature Universal Tensile Testing Machine

Product Applications:

The computerized servo tensile testing machine for high and low temperatures is suitable for testing various physical properties of metallic and non-metallic materials under different temperature conditions, including tensile strength, compressive strength, tear strength, shear strength, peel strength, unwinding force, and ring-shaped initial adhesion. When conducting tests at room temperature, the high- and low-temperature chamber can be removed to provide a larger working area. It is widely used in industries such as machinery manufacturing, electronics and electrical appliances, automotive production, textiles and chemical fibers, wires and cables, and packaging materials.

Test Standards:

1. GB/T 11158 Technical Specifications for High-Temperature Test Chambers
2. GB/T 10589-89 Technical Specifications for Low-Temperature Test Chambers
3. GB/T 10592-89 Technical Specifications for High- and Low-Temperature Test Chambers
4. GB/T 2423.1-2008 Test Methods for Low-Temperature Test Chambers
5. GB/T 2423.2-2008 Test Methods for High-Temperature Test Chambers
6. IEC 60068-2-1:1990 Test Methods for Low-Temperature Test Chambers
7. IEC 60068-2-2:1974 Test Methods for High-Temperature Test Chambers
8. GJB 150.3-2009 High-Temperature Test
9. GJB150.4-2009 Low-Temperature Test

Equipment Features:

• Utilizes an imported optical encoder for displacement measurement, enhancing measurement accuracy.
• The controller employs an embedded microcomputer architecture with built-in powerful measurement and control software, integrating measurement, control, calculation, and storage functions into a single unit.
• Capable of automatically calculating stress, elongation (when equipped with an extensometer), tensile strength, and modulus of elasticity, and automatically compiling results.
• Automatically records force values or elongation at the peak point, fracture point, and specified points.
  The system uses a computer to dynamically display the test process and test curves, and allows for the magnification of data graphs as well as data printing.

Test Applications:

The high- and low-temperature computerized servo tensile testing machine is suitable for testing metallic and non-metallic materials, such as rubber, plastics, wires, steel pipes, copper products, stainless steel, and steel plates. It can perform a variety of tests under different temperature conditions, including tensile, compression, bending, shear, peel, tear, and two-point elongation (when equipped with an extensometer).

Cabinet Construction:

2.1.1. Inner Cabinet Material: Made of SUS304 stainless steel sheet (1.2 mm thick), which offers advantages such as acid resistance, corrosion resistance, and ease of cleaning.
2.1.2. Outer Cabinet Material: Cold-rolled steel sheet with a baked enamel finish, 1.2 mm thick.
2.1.3. Insulation and Noise: The insulation layer consists of integral polyurethane foam, which is lightweight, durable, and corrosion-resistant. The cabinet door is sealed with magnetic gaskets, offering an aesthetically pleasing design and high temperature control accuracy. The joints between the inner and outer cabinets are constructed using non-metallic materials resistant to high and low temperatures, effectively reducing heat transfer. Humidification is achieved via an isolated humidification system. The unit is equipped with a hermetically sealed refrigeration system that operates smoothly and quietly, and features stainless steel finned heating tubes for air heating, providing rust and corrosion resistance.
2.1.4. Sample Racks: Made of SUS304 stainless steel, punched and bent into a mesh structure for convenience and aesthetics, with adjustable spacing; two racks are included as standard, evenly distributed to support a load of ≤25 kg.
2.1.5. Test Port: Features one Φ50mm test port, complete with corresponding thermal insulation accessories and a dedicated sealing plug.
2.1.6. Viewing Window: Constructed of double-layer vacuum-reinforced glass with an inner laminated conductive film for defrosting, allowing clear observation of the test process inside the chamber.
2.1.7. Door Handle: Features a non-reactive, explosion-proof door handle that is easy to operate, safe, and reliable.
2.1.8. Mobility and Positioning System: High-quality guide rails are installed at the bottom of the unit, allowing for quick and convenient movement to a designated location to perform room-temperature testing with the tensile testing equipment.

Performance Features of the Tensile Testing Machine:

1. Main Unit: This machine is suitable for compression and bending tests, with stepless vertical adjustment of the crosshead. The drive system utilizes an arc-shaped synchronous toothed belt and a ball screw pair, ensuring smooth operation and low noise. A specially designed synchronous toothed belt reduction system and precision ball screw pair drive the movement of the testing machine’s crosshead, achieving backlash-free transmission.
2. Standard Fixture Configuration: One set of wedge-type tensile fixtures.
3. Electrical Measurement and Control System:
   (1) Utilizes an AC servo system and servo motor, offering stable and reliable performance, with protection against overcurrent, overvoltage, overspeed, and overload.
   (2) Features protection functions including overload, overcurrent, overvoltage, upper and lower displacement limits, and emergency stop.
   (3) The built-in controller ensures precise control of parameters such as crosshead displacement and enables constant-speed displacement.
   (4) Upon test completion, the crosshead can return to the initial position manually or automatically at high speed.
   (5) It achieves true physical zeroing, gain adjustment, and automatic range switching, zeroing, calibration, and data saving for test force measurement. There are no analog adjustment stages, and the control circuit is highly integrated.
   (6) The electrical control circuitry complies with international standards and meets national standards for testing machines. It features strong anti-interference capabilities, ensuring the stability of the controller and the accuracy of test data.
   (7) Equipped with a network interface, the system supports data transmission, storage, printing, and network-based printing. It can be connected to an enterprise local area network (LAN) or the Internet.