Equipment Brief Introduction

The LYL-18ZKJS series high-temperature, high-vacuum furnaces are mainly used for vacuum sintering, quenching, and other processes of hard alloy, magnetic materials, ceramics, and powder materials. The high-temperature sintering technology for materials ensures reliable thermal and insulating properties. The new electrode structure eliminates the problem of electrode water leakage in high-temperature furnaces, and the replaceable components in the heating system are easier to maintain and replace.

Primary Application

This equipment is widely used in universities, research institutions, industrial and mining enterprises, and is an ideal device for experiments and production in the fields of powder, electronics, metallurgy, ceramics, sulfur, new glass materials, chemicals, metal sintering, and metal heat treatment.  

Structural DescriptionStructure） 

1. Carbon steel housing, welded by a pressure vessel factory, ensuring airtight welds with no blowholes or cracks, etc., for no leakage points.

2. As required, constructed with a double-layer furnace shell and sealed with O-ring silicone gaskets.

3. The furnace door seal features a wire-cut flange, embedded with an O-ring of silicone, and is secured by a handwheel.

4. Bottom furnace electric start, screw lifting, smooth and controllable lifting, well-sealed, does not drop for a long time.

5. The exterior surface of the furnace shell is electrostatic spray-painted for rust prevention, looking aesthetically pleasing.

6. High-temperature furnace chamber for alumina polycrystalline fiber, aesthetically pleasing and energy-efficient

7. Use renowned electrical appliances to ensure safe operation.

8. Temperature control and detection are fully implemented

Single Platinum Rhodium (S-Type) ≤ 1500℃

Platinum Rhodium (Type B) ≤ 1800℃

Vacuum System DescriptionVaccum System）

1. The vacuum system is a diffusion pump unit, which consists of a diffusion pump and a scroll-type Roots vacuum pump. It includes a high vacuum diffusion pump, water-cooled baffle, scroll vacuum pump, electromagnetic vacuum filling valve, high vacuum pneumatic baffle valve (main valve), pre-evacuation valve for high vacuum pneumatic baffle valve, high vacuum pneumatic baffle valve (exit valve), upstream pipeline filling valve, connecting pipeline, seals, composite vacuum gauge, and power distribution cabinet, etc., forming a suction system.

2. This unit is not suitable for extracting gases that are corrosive to metals or reactive with pump oil. It can serve as a high vacuum obtaining device for high-tech equipment such as vacuum smelting, vacuum sintering, vacuum heat treatment, vacuum coating, vacuum brazing, and space simulation experimental facilities. Operating environment temperature: 5~40°C, relative humidity not exceeding 85%, cooling water temperature: 25°C ±5°C.

3. The vacuum level is related to the vacuum pump's suction capacity, the cabin's sealing, and the degassing amount of the internal materials (furnace inner wall, experimental devices, heat sinks, etc.). The ultimate pressure of this unit is 1×10^-3 Pa, the operating pressure is 1×10^-2 Pa, and the suction time is approximately 1 hour.

4. The diffusion pump cannot evacuate air independently; it must be preceded by a primary pump to reduce the system pressure to within the starting pressure required by the diffusion pump, typically ≤10 Pa.

5. A new type of water-cooled baffle is installed at the intake of the diffusion pump, effectively preventing the return of oil vapor from the pump into the vacuum chamber, thus avoiding contamination of the experimental equipment.

6. To prevent the vacuum oil in the preliminary pump from flowing back into the diffusion pump cavity when the pump stops, an electromagnetic valve must be installed at the inlet of the preliminary vacuum, automatically isolating the system piping during shutdown.

All valves are operated pneumatically for easy handling.

8. Upon initiating the evacuation, this system features a preliminary evacuation line, where the gas is directly pumped out by the fore pump instead of passing through the diffusion pump. This method prevents contamination of the diffusion pump by the gas inside the evacuation vessel (moisture, volatile substances, impurities). Once the pressure inside the vessel drops to 10 Pa, close the preliminary evacuation valve and open the baffle valve. The diffusion pump then commences normal evacuation of the vessel.

Corporate Qualifications & Honors

Quality Management System CertificationGB/T19001:2016/ISO 9001:2015； European UnionCECertification; "Luoyang City Model Enterprise for Civilization and Faithful Business Practice"“China Electric Furnace Industry Brand”；“Quality, Service, Reputation - AAA-rated Enterprise”Our products pass inspections by testing institutions, and third-party certification can be provided upon request.

Main Functions & Features

Wide temperature range of 800℃-1800℃ (optional)

2. Vacuum level up to 10^-3 Pa (optional)

3. Energy-saving, environmentally friendly with zero pollution (high-purity composite alumina as furnace material)/Ceramic polycrystalline fibers, lightweight, low heat retention, energy-efficient (average half-power operation)

4. Easy to replace Energy-saving and time-saving (heating element with resistance wire/silicon carbide rod/silicon molybdenum rod, long service life and easy replacement)

5. Individual control cabinet, easy to operate, and more user-friendly

6. High temperature control accuracy (instrument quality superior, temperature control accuracy ±)1The thermometer can provide a third-party inspection certificate.

7. Excellent uniformity of furnace temperature (合理布局，温场均衡，炉腔无死角) - Good uniformity of furnace temperature (Reasonable layout, balanced temperature field, no dead corners in the furnace cavity)

8. PLC touch screen temperature control with adjustable heating rate and automatic operation

9. Over-temperature, over-pressure, and over-flow automatic protection with red, green, and yellow status indicator lights

10. Optional gas flow meters include float flow meters and mass flow meters, enabling manual and automatic control of gas flow; also capable of shutting off gas flow.

11. Broad Application Range: Universities, research institutions, industrial and mining enterprises, etc., for powder, military, electronics, metallurgy, ceramics, glass, machinery, new material development, special materials, refractory materials, building materials, chemicals, metal sintering, and metal heat treatment, etc., for testing and production.

12. Double-shell design, air-insulated, (available with cold water unit)

Exterior electrostatic powder coating with dual-color combination, exquisitely elegant and generous appearance.

14. Excellent reputation, with a large customer base

15. Great value for money, comprehensive after-sales service, 1-year warranty, lifetime on-site repair

Main Technical Parameters

Selection Guide

Standard Accessories

Name		Image	Quantity	Description
High-Temperature Gloves			1Double	High comfort and keeps hands warm; cut-resistant, wear-resistant, and heat-resistant (can withstand up to 350°C; can touch heat for 60 seconds at 100°C, 180 seconds at 100°C) for long-lasting durability.
Heating Element	Silicon carbide rod		2Please provide the Chinese content to be translated.	Silicon-carbide components, with high operating temperatures, are hard and brittle. After molding, they are used, such as silicon-carbide silicon-carbide rods and tubes, which can reach high heating temperatures under air-dry conditions.1500100-120°C, for use under vacuum conditions; 1000-1200°C under nitrogen atmosphere; long-term use temperature 1350°C
	Silicon Molybdenum Rod		2Please provide the Chinese content to be translated.	Silicon molybdenum rods are heated to high temperatures in an oxidizing atmosphere, where a dense quartz glass film forms on the surface to protect them from further oxidation. Thus, silicon molybdenum rods exhibit high-temperature oxidation resistance. In an oxidizing atmosphere, the temperature can reach1800°C, can be used as heating elements for industrial high-temperature furnaces in electronics, ceramics, magnetic materials, glass, metallurgy, refractory materials, etc.
Pot tongs			1Leave it as is.	1. A common chemical instrument, typically used for holding crucibles. Generally made of stainless steel or hard, non-flammable, and non-oxidizable materials. 2. Use clean tongs. 3. When gripping a hot crucible with tongs, preheat the tip to prevent the crucible from cracking due to local cooling. After use, place the tongs tip up on the table or a asbestos pad. 4. After the experiment is complete, clean the crucible tongs and place them in the equipment cabinet for drying storage. 5. Use the curved section for holding crucibles, and the pointed end for other uses. 6. Crucible tongs are not necessarily used in conjunction with crucibles; they can also be used independently.

Optional Accessories Listnal Accessories List）

Special Note

Common Faults and Troubleshooting