我们的25-100吨热压炉配有更大的腔室尺寸，并安装在25至100吨的大型4柱框架内。增量压力机尺寸为25、50、75和100吨。

对于增加的样品或模具尺寸，这些型号可提供6英寸（152毫米）的行程。

温度和材料规格与较小的热压机型相似，安装压杆时额定温度为2300°C，批量配置为2600°C。

12“直径x 12”高（305 mm x 305 mm）的可用区域是标准配置，其他尺寸可用。

如果需要，温度曲线可与压力或行程控制曲线自动同步。也可以设定一个力从设定到行程控制。使用热电偶和/或高温计进行温度控制。该炉可以很容易地转换成间歇式炉进行生产。

 

Our 25 – 100 Ton Hot Pressing Furnaces come with larger chamber sizes and are housed in a large 4 post frame rated at 25 to 100 ton. Incremental press sizes are 25, 50, 75 and 100 tons.

 

6” (152 mm) of travel is available on these models for increased sample or die sizes.

 

Temperature and material specifications are similar to the smaller Hot Press models, 2300°C maximum with the press rods installed, 2600°C in batch configuration.

 

A 12” diameter x 12” high (305 mm x 305 mm) usable zone is standard with other sizes available.

 

Temperature profiles can be synchronized automatically with press force or travel control profiles, if required. Profiles can also be set up to switch from travel to force control once a preset press force is reached. Temperature control is established by use of a thermocouple and/or pyrometer. The furnace can easily be converted to a batch furnace for proction.

 

一般规格：

热区尺寸：12“直径x 12”高（305mm x 305mm）

陶瓷，额定1650°C（3002°F）

钼，额定1650°C（3002°F）

钨，额定2200°C（4000°F）

石墨，额定2300°C（4172°F）

2600°C（4712°F），可批量配置

+/-整个区域10°C温度梯度

25吨至100吨（222.4 kN–889.6 kN）承重架和液压机系统

行程4英寸（101毫米）或6英寸（152毫米），控制增量为0.001英寸（0.02毫米）

力控制，力增量为2 lbs（10 N）

金属波纹管在移动测试棒上形成真空密封

 

General specifications:

Hot zone Size: 12” diameter x 12” high (305mm x 305mm)

Ceramic, 1650°C (3002 °F) maximum

Molybdenum, 1650°C (3002 °F) maximum

Tungsten, 2200°C (4000 °F) maximum

Graphite, 2300°C (4172 °F)maximum

2600°C (4712 °F) capable in batch configuration

+/- 10°C temperature gradient across zone

25 ton to 100 ton ( 222.4 kN – 889.6 kN) load frame and hydraulic press system

Travel 4” (101 mm) or 6” (152 mm) with 0.001” (0.02mm) control increments

Force control with 2 lbs (10 N) Force increments

Metal bellows create a vacuum seal on mobile test rod

 

燃烧室和热区

试验箱从前面加载，并包含一个热区，尺寸为12“直径x 12”高（305 mm x 305 mm），温度梯度为+/-10°C。加热元件为1/2-1/2分体式设计，允许a型模体直接插入该区域。炉室由焊接在一起的双壁不锈钢制成，经过电抛光，光洁度和真空度良好。

热区有三种选择：石墨带元件和刚性纤维石墨绝缘包，钼-D棒元件和陶瓷绝缘包，或高温金属网加热元件和层状金属屏蔽。在热压配置中，额定工作温度为2300°C（陶瓷区为1650°C）。通过提供端塞护罩来堵塞顶部和底部热棒开口，熔炉可以用作一个操作温度为2600°C的间歇/烧结炉。

液压机

设计和制造的带负载列车的立柱和压盘压力机能够承受超过100吨的力。与市场上的一些标准焊接“H”型框架不同，这种立柱和台板框架完全可调，以实现较好对齐。负载系统包括水冷不锈钢顶部和底部冷棒，以及高强度顶部和底部热棒。顶杆具有4.0〃冲程，顶部冷杆由波纹管组件上的静态o形环密封，以提供高真空额定密封。

伺服液压压力控制系统包括4.0〃行程液压缸、液压动力单元、压力表和测压元件，用于测量和控制压力。计算泵尺寸和伺服阀尺寸，以允许快速点动加载和定位。在我们的HMI系统上也提供了用于精细定位的慢速点动速度。气缸位置精度为0.001〃（0.02 mm），力精度为1 lb（5 N）。

电源和控制

热区的电源由三相可控硅控制电源供电，符合设计新的NFPA和NEC规范（可获得CE认证）。电源的设计与加热元件相匹配，并且其尺寸允许快速上升。变压器包括多个抽头，可在元件和屏蔽老化但仍可用时使用。一组水冷电力电缆为熔炉的热区供电。

温度和压力控制可通过经典仪表和按钮或通过SCADA/HMI系统实现。压力和温度控制程序可以同步。HMI系统记录数据，提供用户安全性，显示图形、警报，并为全炉控制提供直观的图形用户界面。

提供“C”型铠装和涂层热电偶，可用于测量高达2000°C的炉温。当炉子运行到高于2000°C的温度时，控制自动切换到高温计。

真空和气体系统

基本抽真空系统由旋转叶片机械泵、电空真空阀、真空计控制器和真空计组成。该真空系统允许在真空环境（10-2托范围）下运行。还可提供可选的4〃或6〃扩散泵送系统或涡轮泵送系统，可达到10-6 Torr（扩散泵送系统）和10-7 Torr范围（涡轮泵送系统）的真空水平。

在热试验和物理试验期间，所提供的基本气体系统为工作样品提供了一个惰性环境。工艺气体系统包括一个电磁阀操作的入口阀、一个复合仪表（30 P.S.I.G.x 30 in。一个气体流量计和一个2P.S.I.G.出口安全阀，以保持正的腔室压力。分压系统，氢气操作，气体比率的质量流量控制器和其他选项可用。

水冷系统

炉水冷却歧管由多个回路组成，以充分冷却熔炉的所有部件，包括过滤器、压力调节器、压力计、进水和出水歧管、水流开关（作为可视水流指示器，带有流量联锁装置），以在水流发生故障时保护熔炉。如果水流在一定时间内低于建议的设计小值，此开关将关闭热区的电源。熔炉的每个部分都有一个立的冷却回路，可以通过立的手动球阀进行调节。

公用事业

功率：kVA，取决于额定温度额定值，380-480V/3/50-60Hz（其他可用电压）

水：70F（20°C）和50 P.S.I.G.（3.4bar），所需流量取决于kVA额定值。

工艺气体：氩气或氮气30 L.P.M.@50 P.S.I.G。

压缩空气：60–90 P.S.I.G.（4.1–6.2 bar）过滤。

 

 

Chamber and Hot Zone

The chamber is loaded from the front and contains a hot zone sized 12” diameter x 12” high (305 mm x 305 mm) with a +/- 10°C temperature gradient. The heating element is a 1/2- 1/2 split design allowing the a die body to be inserted straight into the zone. The furnace chamber is manufactured from double-walled stainless steel welded together and electro-polished for a clean finish and good vacuum integrity.

 

Three hot zone choices are available: a graphite band element and rigid fibrous graphite insulation pack, a Moly-D rod element and ceramic insulation pack, or a high temperature metal mesh heating element and layered metal shielding. In the hot press configuration the maximum operating temperature is 2300°C (1650°C with ceramic zone). With the end plug shields supplied to plug the top and bottom hot rod openings, the furnace can be used as a batch/sintering furnace with operation temperatures to 2600°C.

 

Hydraulic Press

The Post and Platen Press Frame with load train is designed and manufactured to withstand well over 100 tons of force. This Post & Platen Frame is fully adjustable for perfect alignment, unlike some standard welded “H” frames on the market. The load train includes water-cooled stainless steel top and bottom cold rods, and high strength top and bottom hot rods. The top rod has a 4.0″ stroke and the top cold rod is sealed by a static o-ring on a bellows assembly to provide a high-vacuum rated seal.

 

The Servo Hydraulic and Pressure Control System includes a 4.0″ stroke hydraulic cylinder, a hydraulic power unit, a pressure gauge, and a load cell to measure and control press force. The pump size and servo valve size are calculated to allow fast jogging speeds for loading and positioning. A slow jog speed for fine-positioning is also provided on our HMI systems. Cylinder positional accuracy will be 0.001″ (0.02 mm) and force accuracy of 1 lb (5 N).

 

Power Supply & Controls

Power to the hot zone is supplied by a three phase SCR-controlled power supply, meeting the latest NFPA and NEC codes (CE certification available). The power supply is is designed to match the heating element, and is sized to allow for fast ramp rates. The transformer includes multiple taps which can be used when the element and shields are aging but still usable. A set of water-cooled power cables supplies power to the hot zone of the furnace.

 

Temperature and press control is accomplished either with classic instruments and push buttons, or by means of a SCADA/HMI  system. Press force and temperature control programs can be synchronized. The HMI system logs data, provides user security, displays graphs, alarms, and provides an intuitive graphical user interface for full furnace control.

 

A type “C” sheathed and coated thermocouple is supplied and can be used to measure the furnace temperature up to 2000°C. When operating the furnace to temperatures above 2000°C, control is automatically switched over to a Pyrometer.

 

Vacuum and Gas System

The basic evacuation system consists of a Rotary Vane Mechanical Pump, an electro-pneumatic vacuum valve, vacuum gauge controller and a vacuum gauge. This vacuum system will allow for operation in a vacuum environment (10-2 Torr range). An optional 4″ or 6″ diffusion pumping system or a turbo pumping system can be provided as well and can achieve vacuum levels down to 10-6 Torr (diffusion pumping system) and 10-7  Torr range (turbo pumping system).

 

The basic gas system supplied provides an inert environment for the work samples ring the heat and physical testing. The process Gas System includes a solenoid-operated inlet valve, a Compound Gauge (30 P.S.I.G. x 30 in. Hg.), a gas flow meter, and a 2 P.S.I.G. outlet relief valve to maintain positive chamber pressure. Partial pressure systems, hydrogen operation, mass flow controllers for gas ratios and other options are available.

 

Water cooling system

The Furnace Water Cooling Manifold consists of multiple circuits to adequately cool all the furnace parts and includes a strainer, pressure regulator, pressure gauge, water inlet and outlet manifold, a water flow switch as a visual water flow indicator with a flow interlock to protect the furnace in the event of a water flow failure. This switch turns off power to the hot zone if water flow is below recommended minimum for a certain amount of time. Each part of the furnace is supplied with a separate cooling circuit that can be regulated by independent manual ball valves.

 

Utilities

Power: kVA dependent on max temperature rating, 380-480 V/3/50-60 Hz (other voltages available)

Water: 70F (20°C) and 50 P.S.I.G. (3.4 bar), required flow dependent on kVA rating.

Process Gas: Argon or Nitrogen 30 L.P.M. @ 50 P.S.I.G.

Compressed Air: 60 – 90 P.S.I.G. (4.1 – 6.2 bar) filtered.