Product Introduction

This product is a batch-type high-temperature sintering equipment designed for material sintering under high-pressure nitrogen (N₂）或氩气（Ar) atmosphere. It is widely used for densification treatment of advanced materials such as silicon nitride ceramics, fluorescent powders, and shaped ceramic structural parts. By applying gas pressure up to several megapascals to tens of megapascals during the sintering process, it can effectively inhibit the decomposition and volatilization of materials at high temperatures, significantly improving the density, uniformity, and mechanical properties of the sintered body. It is an ideal equipment for preparing high-performance special ceramics.

Technical features

High-Pressure Atmosphere Sintering Capability. Working pressure range:0.5~10 MPa(Optional higher pressure rating), supports high-purity nitrogen, argon, and other inert gases, meeting the stringent requirements of different materials for pressure and atmosphere.

High-efficiency heating and temperature control system. Adopts graphite or molybdenum wire heating elements, with a maximum working temperature of2000℃and above. Multi-zone independent temperature control, small in-furnace temperature difference, high temperature control accuracy±1℃, ensuring batch consistency of products.

Rapid Cooling Structure. Equipped with a forced airflow circulation cooling device, it can rapidly cool down after sintering, shortening the production cycle and improving equipment utilization.

Safety interlock and protection functions. Equipped with multiple safety protection systems such as over-temperature, over-pressure, over-current, water pressure under-pressure, and furnace door interlock, with automatic pressure relief and alarm prompts for safe and reliable operation.

Fully Automatic Cycle Control. AdoptsPLCand touch screen human-machine interface, with settable heating profiles-Holding-Pressurization-Cooling and other complete process curves, achieving unattended automatic operation, and supporting data recording and export.

Compact Sealed Furnace Body Design. The furnace body adopts a double-layer water-cooled structure, the flange sealing surface is precision machined, and equipped with imported sealing rings, maintaining excellent airtightness under long-term high temperature and high pressure.

Note: Various non-standard experimental and industrial furnaces can be customized according to customer's actual working conditions.

Application Fields

Structural ceramic manufacturingSilicon nitride (Si₃N₄), Silicon carbide (SiC、赛隆（Sialon）等陶瓷球、轴承滚子、切削刀具、防弹装甲板的烧结。

Functional ceramics and fluorescent powdersYAG、氮化物基等荧光粉材料的高压烧结，提升发光效率与热稳定性。

Special refractory materials. Products with stringent density and strength requirements, such as shaped ceramic parts, ceramic matrix composites, and high-temperature filter elements.

Scientific Research and New Material Development. Universities and research institutes conduct high-pressure atmosphere sintering experiments for new ceramics, intermetallic compounds, and amorphous materials.

Product Advantages

Improve Material Density. High-pressure atmosphere effectively inhibits abnormal grain growth and material decomposition at high temperatures, obtaining a sintered body close to theoretical density, with porosity lower than1%.

Optimize Mechanical Properties. After sintering, the product's bending strength, fracture toughness, and hardness are significantly improved, wear resistance and corrosion resistance are enhanced, extending the service life of components.

Reduce post-processing costs. Uniform sintering shrinkage allows for near-net-shape complex parts, eliminating the need for extensive grinding and reducing production costs.

Strong Process Adaptability. Flexible temperature-Pressure-Atmosphere combination modes, which can meet the process exploration and batch production of various advanced ceramics and powder metallurgy materials.

Economical and Efficient Operation. Rapid cooling and automated operating system shorten the single furnace cycle, coupled with excellent heat preservation performance, the overall energy consumption is lower than similar equipment.15%~20%。

Safe, stable, and reliable. Multiple interlock and fault self-diagnosis systems ensure personnel and plant safety during long-term high-temperature and high-pressure operation.