1700℃ high temperature box resistance furnace, also known as muffle furnace. 3-sided heating, air-cooled double-layer furnace body, high-purity alumina lining, ±1℃ temperature accuracy, 50-segment program temperature control with multi-safety protection
| Item | 1200℃ | 1400℃ | 1600℃ | 1700℃ | 1800℃ | 1900℃ |
|---|---|---|---|---|---|---|
| Product Specification | 1200℃ | 1400℃ | 1600℃ | 1700℃ | 1800℃ | 1900℃ |
| Long-term Working Temperature | 1150℃ | 1350℃ | 1550℃ | 1680℃ | 1780℃ | 1880℃ |
| Temperature Control Range | 100-1200℃ | 100-1400℃ | 100-1600℃ | 100-1700℃ | 100-1800℃ | 100-1900℃ |
| Temperature Control Accuracy | ±1℃ | ±1℃ | ±1℃ | ±1℃ | ±1℃ | ±1℃ |
| Temperature Measuring Element | K | S | B | B | B | B + Optical Fiber |
| Heating Element Material | High temperature alloy resistance wire | Silicon Carbide Rod | Silicon Molybdenum Rod | Model 1800 Silicon Molybdenum Rod | Model 1850 Silicon Molybdenum Rod | Model 1900 Silicon Molybdenum Rod |
| Heating Element Installation Position | Three-sided heating (both sides + bottom) | Up & Down / Both Sides | Both Sides | Both Sides | Both Sides | Both Sides |
| Heating Rate | Max. 40℃/min (non-linear) | |||||
| Furnace Structure & Material | The furnace body adopts air-cooled double-layer carbon steel structure. Efficient air cooling guide partition realizes cold air circulation around furnace shell, cools conductive strips of heating elements before exhaust, prevents high-temperature oxidation of conductive strips and ensures good working environment. | |||||
| Door Opening Method | Axial 180° side opening plus 360° rotation. Elastic lock fitted on furnace door side for tight sealing. The elastic lock absorbs thermal expansion of refractory materials to allow free expansion & contraction while maintaining effective sealing. | |||||
| Refractory & Insulation Material | Furnace lining is vacuum-formed high-purity alumina lightweight material, featuring high working temp, low heat storage, thermal shock resistance, no cracking, no slag falling and excellent thermal insulation. | Type 2100 Zirconia Fiber | ||||
| Furnace Shell Temperature | Shell temperature ＜45℃ | |||||
| Safety Protection | Integrated modular control unit with high control precision. Dual-loop control & dual-loop protection. Functions include overshoot, under-regulation, thermocouple break, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start protection. | |||||
| Multi-point Temperature Control | Main heating circuit cuts off automatically when furnace door is opened under high temperature, greatly reducing electric shock risk during high-temp material taking. | |||||
| Safe Temperature Control | Closed-loop SCR module trigger control (phase-shift trigger or zero-cross trigger). Continuously adjustable output voltage/current/power with constant voltage / constant current / constant power function. Current loop as inner loop and voltage loop as outer loop. When sudden load is applied or load current exceeds limit value, regulator output current is limited within rated range to protect heating elements from large current/voltage impact, achieving reliable control and high precision. | |||||
| Temperature Curve Setting | Adopts intelligent temperature controller with standard PID, APID, MPT and other regulation modes. Auto-tuning & self-learning function, no overshoot or under-regulation. Built-in 30-segment program control for arbitrary slope heating/cooling. Supports jump (cycle), run, pause, stop commands, and program modification during operation. AI algorithm with curve fitting delivers smooth temperature curve. | |||||
| Program Segments | 50-segment programmable function. Options: 1 curve ×50 segments; 2 curves ×28 segments each; 3 curves ×15 segments each; 5 curves ×9 segments each. Multiple curves can be stored and called arbitrarily. | |||||
| Panel Buttons | 2 buttons/knobs: Main power button/knob, Heating chamber switch button/knob. | |||||
| Standard Accessories | 1 pair of crucible tongs, 1 pair of high-temperature gloves. | |||||
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