Industrial Furnace

Technical overview

Designed around the complete thermal process.

Industrial Furnace is a HuanYu industrial furnaces system for metal annealing, normalizing, tempering, stress relief. Published configuration references include 1100 / 900 / 1250 °C configurations and Air or controlled thermal processing. Final selection depends on the material, workload, process window and selected configuration.

Key technical facts

• +Temperature reference: 1100 / 900 / 1250 °C configurations
• +Environment reference: Air or controlled thermal processing
• +First, the overall overview of the equipment RT3 series full-fiber trolley furnace belongs to the periodic large-scale industrial resistance heat treatment furnace, is the mainstream mass production type high-temperature industrial furnace, relying on the load-bearing trolley to load and unload large quantities of workpieces, using full refractory fiber insulation, five-sided electric heating, suitable for metal annealing, normalizing, quenching preheating, forging tempering, casting stress relief, powder metallurgy sintering and other large batch heat treatment processes, widely used in machinery, auto parts, metallurgy, mold, metal and other manufacturing industries. This standard specification furnace size 5000 × 2000 × 1200mm, rated temperature 1100 ℃, full load load up to 30 tons, suitable for large and medium-sized parts batch heat treatment. II. The temperature zone of the core technical parameters and the total power of 440KW are divided into 4 independent temperature control zones; rated high 1100 ℃, long-term stable use ≤ 900 ℃; temperature control accuracy ± 1 ℃, and the overall temperature difference in the furnace ≤ ± 10 ℃. Heating energy consumption: The empty furnace is heated to 1100 °C for about 3 hours, and the full load is heated for about 6 hours; the thermal insulation steady-state power consumption is only ≤ 120kw/h, the heat loss of the empty furnace is less than 15%, and the energy saving effect is outstanding. Power supply and temperature measurement Three-phase 380V/50Hz power supply, equipped with 4-channel K-type thermocouple partition temperature measurement, supporting paperless recorder complete storage process curve. The load-bearing and structural furnace dimensions are 5m × 2m × 1.2m, and the trolley is fully loaded with 30T;
• +The outer surface temperature of the furnace wall is ≤ 45 ℃, and the operation is carried out. Heating material 0Cr26Al6Nb corrugated resistive strip, five-sided layout (two sides + back wall + furnace door + trolley bottom); trolley load-bearing bottom plate ZGNi7N heat-resistant cast steel. Thermal insulation configuration 300mm thickened high aluminum full-fiber folding module, bulk density ≥ 240kg/m ³, heat shock resistance, low heat storage. III. Composition of the core structure of the machine 1. The furnace body adopts a thickened Q23 steel plate + No. 10 channel steel welding frame, which is rigid and not easy to deform; the 300mm high-density refractory fiber module is lined with a high-temperature curing coating on the surface, the thermal conductivity is extremely low, the temperature rise is fast, and the heat dissipation is small. Fiber temperature resistance 1250 ℃, long-term high temperature without pulverization, low shrinkage. 2. The manual handwheel of the side-open sealing furnace door presses the sealing structure, and the fiber soft contact has no friction loss; the furnace door has a built-in heating element to achieve uniform heating on all five sides; equipped with double stroke limit, the heating power is automatically cut off when the door is opened, and the trolley is interlocked with the trolley, so the trolley cannot drive in the open state. 3. Heavy-duty mobile trolley (core feature) Heavy-duty welding of No. 16 channel steel frame with a large load capacity of 30 tons; multiple sets of load-bearing walking wheels at the bottom, the chain reducer is driven smoothly, with front and rear extreme anti-collision limits; a heating belt is arranged at the bottom of the trolley, matched with a 30mm thick Ni7N heat-resistant cast steel bottom plate to insulate the oxide skin from damage and heating elements;
• +Double-layer seal design: Fiber soft seal + sand seal for two protections to prevent hot air leakage in the furnace and reduce energy consumption. 4. Five-sided partition heating system resistor band corrugated forming, ceramic insulation isolated and fixed, divided into four independent PID temperature control; simultaneous heating on both sides, rear door, furnace door, trolley bottom, small temperature difference between the upper and lower parts, front and rear parts, high consistency of heat treatment, easy to disassemble and replace heating elements. 5. Automatic temperature control electronic control system Shanghai Shimada SMA93 smart meter, supports 32 programmable heating curves, silicon controlled power PID adjustment; supporting paperless recorder, real-time collection, export, printing temperature curves, long-term traceability of process data; complete interlock: ultra-temperature acousto-optic alarm, thermocouple disconnection protection, furnace door power off, trolley limit, emergency stop button; independent control cabinet with heat dissipation air conditioning, circuit protection, voltage and current real-time display. Fourth, the core advantages of the product Full-fiber energy-saving design Compared with the old brick furnace, the heat storage is greatly reduced, the heating speed is improved, the insulation power consumption is only one-third of the traditional furnace, and the long-term production electricity cost is significantly saved. Heavy-duty large batch processing of 5-meter super-long furnace + 30-ton load-bearing trolley, loading a large number of forgings, molds, and steel structures at one time, suitable for large-scale mass production in factories. The five-sided equilibrium temperature field surrounds the heating in all directions, and there is no upper and lower temperature difference between large workpieces to avoid local hardness unevenness and heat treatment defects. Multiple interlocks
• +Multiple protections for furnace doors, trolleys, over-temperature, and broken evenings, and automatic shutdown due to misoperation, greatly reducing the risk of equipment and workpieces being scrapped. Fully automatic unattended preset heating, insulation, slow cooling process, automatic recording of data, reduce manual watch. Durable and easy-to-maintain standardized heating elements, modular fiber liners, and partial replacement of damaged areas without overall overhaul. V. Mainly applicable to machinery manufacturing in the process industry: gear, shaft, mold, stamping die annealing, tempering, stress relief; auto parts industry: normalizing, tempering and preheating of chassis parts and forging parts; metallurgy/hardware: bright annealing of stainless steel and carbon steel workpieces; casting industry: internal stress heat treatment of castings; powder metallurgy: high temperature sintering of large powder billets. 6. Delivery and after-sales production cycle: the advance payment is completed within 30 working days, and the on-site installation and commissioning is completed within 5 days; the quality assurance policy: the whole machine is three packages a year, and the engineer repairs it at home within 48 hours; life-long accessories, regular return visits, and operation training are provided; the complete set includes: furnace body, heavy-duty trolley, heating system, electric control cabinet, heat-resistant bottom plate, and a full set of drawings.