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Four de presse à chaud

Four de presse à chaud

A hot press furnace is a high-temperature device that densifies materials by simultaneously applying high temperature and pressure. It is widely used in the fields of powder metallurgy, functional ceramics and the preparation of high-performance materials.
This equipment employs a high-pressure, low-strain-rate powder metallurgy process, which causes powder or compact to sinter and creep under high-temperature conditions, thereby obtaining high-density materials.The hot pressing process can be carried out under vacuum or a specific atmosphere, effectively improving material properties and reducing the effects of oxidation.
This equipment is suitable for universities, research institutes, and industrial and mining enterprises, and has significant application value in the fields of new material research and development and high-end manufacturing.

Caractéristiques du produit (Four de presse à chaud)

  1. Simultaneous High-Temperature and High-Pressure Pressing for Densified Sintering

This hot press furnace employs a high-pressure, low-strain-rate powder metallurgy process. Heat and pressure are simultaneously applied to powder or powder compacts at sufficiently high temperatures to initiate sintering and creep processes. Compared to traditional atmospheric pressure sintering, hot press sintering can achieve near-theoretical density materials at lower temperatures and in a shorter time, resulting in finer grains and superior mechanical properties.

  1. Vacuum Atmosphere Protection for Various Materials

Hot press sintering under high vacuum conditions effectively prevents material oxidation. Inert gases (nitrogen, argon, etc.) or reducing gases (hydrogen, etc.) can be introduced to conduct hot press sintering under a special atmosphere, meeting the stringent atmospheric requirements of materials such as cemented carbides, functional ceramics, and powder metallurgy.

  1. High-Quality Heating Elements, Stable High-Temperature Performance

High-temperature alloy resistance wire (containing molybdenum, with a surface temperature reaching 1420℃) or silicon carbide rods are used as heating elements, with the configuration selected according to the operating temperature. The heating elements are installed around the furnace chamber, forming a uniform heating field to ensure even temperature distribution during hot pressing. The heating elements undergo aging treatment before assembly to ensure long-term stability and reliability.

  1. Contrôle précis de la température, No Overshoot

Le contrôle du circuit intégré élimine les dépassements. Un régulateur de température intelligent combiné à un contrôle par programme par micro-ordinateur assure un contrôle précis et stable de la température., meeting the stringent temperature accuracy requirements of hot pressing sintering processes.

  1. Contrôle programmable, Excellent Process Reproducibility

Microcomputer program control with programmable curves enables fully automatic heating/cooling. It features 30 or 50-segment program control, allowing for arbitrary slope heating and cooling control. Programmable commands such as jump (boucle), courir, pause, and stop are available, and temperature control parameters and the program can be modified during operation, offering flexibility and convenience.

  1. Real-time Pressure Monitoring, Traceable Data

The control panel is equipped with a digital pressure gauge that displays the applied pressure value in real time. An optional pressure printer records pressure change curves, facilitating process analysis and quality traceability. The pressure control system can precisely adjust the pressurization rate and holding time to meet the densification requirements of different materials.

  1. Vacuum and Flow Monitoring, Controllable Atmosphere

Equipped with a vacuum display and flow meter, it monitors the vacuum level and gas flow rate inside the furnace in real time. The inlet valve can precisely control the on/off state and flow rate of the protective gas to meet the different needs of vacuum sintering and atmosphere sintering.

Hot Press Furnace Pressure Rise and Fall
Hot Press Furnace Control Panel
Remarques1. To ensure a long service life of the furnace, it is recommended that the maximum heating and cooling rate be 10–20℃/min. Rapid heating at high temperatures will shorten the service life of the heating elements.
2. Tiny cracks may appear on the furnace chamber after prolonged use. This is normal and will not affect operation, and the chamber can be repaired with an alumina coating if needed.
3. Corrosive gases are not recommended. If highly corrosive gases such as S, Na, etc., must be used, please inform us in advance so that we can apply special treatment to the furnace chamber.
4. Do not allow high-temperature molten liquid to spill onto the furnace bottom. This can be avoided by using a backing plate or isolating with alumina powder.
5. The equipment should be placed in a well-ventilated and dry area.

Domaines d'application (Four de presse à chaud)

  • Cemented Carbide: Hot pressing sintering of tungsten carbide-based cemented carbides. The high-temperature, high-pressure simultaneous pressing process of this hot press furnace can produce high-density, high-hardness cemented carbide products, such as cutting tools, moules, and mining tools.
  • Functional Ceramics: Suitable for hot pressing sintering of piezoelectric ceramics, transparent ceramics, magnetic ceramics, and other functional ceramics. Hot pressing sintering can produce fine-grained, high-density ceramic materials, significantly improving electrical, optical, and magnetic properties.
  • Métallurgie des poudres: Suitable for hot pressing and sintering of metal powders, alloy powders, and composite powders. It can be carried out under vacuum or a protective atmosphere to prevent powder oxidation and obtain high-density powder metallurgy products.
  • Composite Materials: Suitable for densification sintering of metal matrix composites and ceramic matrix composites. The hot pressing process can effectively reduce porosity and improve interfacial bonding strength.
  • Superhard Materials: Suitable for hot pressing sintering of superhard materials such as cubic boron nitride and polycrystalline diamond. Precise temperature and pressure control ensures the stable performance of superhard material products.
  • New Material Development: Applicable to the research and preparation of new materials such as specialty ceramics, high-temperature alloys, and amorphous materials. Hot-pressing sintering technology allows for the exploration of material sintering behavior and performance optimization under high temperature and pressure.

Profil de l'entreprise

Une entreprise professionnelle spécialisée dans les services de technologie de traitement thermique et le R&D, fabrication, et vente de fours électriques haute température.

La société se concentre sur le développement de fours électriques à haute température couvrant une plage de températures complète de -100 ℃ à 2 600 ℃.. Ses produits comprennent des fours électriques expérimentaux, fours à atmosphère sous vide, fours industriels, et équipements de chauffage par induction à moyenne fréquence. Les principaux produits comprennent des fours à caissons, fours tubulaires, fours de levage, fours pousseurs, fours à bogies, fours rotatifs, fours tunnel, et divers fours spécialisés moyenne fréquence.

L'entreprise adhère à l'innovation technologique et a passé les certifications ISO9001 et CE de l'UE.. Il possède 21 marques déposées, 29 brevets, et 27 droits d'auteur sur les logiciels.

20-usine d'acres:Nous nous concentrons sur la fourniture de solutions de traitement thermique personnalisées à nos clients.
40-usine d'acres:Les processus de fabrication standardisés raccourcissent les cycles de livraison et permettent une livraison plus rapide.
espace de stockage
Atelier de tôlerie
Atelier de montage
Atelier réfractaire

Méthodes de paiement

TT

Méthodes d'expédition

Le four électrique est emballé en trois couches: d'abord enveloppé dans du papier mousse, puis enveloppé dans un film plastique, et enfin emballé dans une caisse en bois.

Foire aux questions (FAQ)

  1. What is the working principle of a hot press furnace?

A hot press furnace uses a high-pressure, low-strain-rate powder metallurgy process. Heat and pressure are simultaneously applied to powder or powder compacts at sufficiently high temperatures, initiating sintering and creep processes, resulting in material densification and shaping.

  1. Can it be evacuated? Can it be vented under a protective atmosphere?

Oui. Vacuum atmosphere hot press furnaces support hot pressing sintering under high vacuum and special atmosphere protection.

  1. What parameters can the control panel monitor?

The control panel is equipped with an intelligent temperature controller, power switch, main heating start/stop button, voltmeter, ammeter, computer interface, digital pressure gauge, flow meter, vacuum display, valves, and pressure printer, allowing for convenient monitoring of the system's operating status.

  1. Is it suitable for laboratory use?

Oui. Designed specifically for research and development in laboratories of universities, research institutes, and industrial and mining enterprises.

  1. How is its anti-interference capability?

It adopts reliable integrated circuitry, has a good working environment, and strong anti-interference capability.