Pit Furnaces
6Pages

for operation with controlled atmosphere

Technological applications of pit furnaces Gas carburizing Hardening Bright Annealing Normalising Carbonitriding □ Automotive industry: crankshafts, camshafts, pistons, pins, pumps, engine accessories, shafts, racks □ Aircraft industry: tooth wheels, conical and spiral wheels, under-carriage parts □ Machine building industry: shafts, sleeves, pins, tooth wheels, chains □ Mining industry: drilling rods, mono-blocks, bits □ Bearing industry: bulky bearing elements □ Wind energy industry: large power transmission components as: sun pinions, pinions, gear wheels, plants □ Marine industry: large...

Pit Furnaces for operation with controlled atmosphere Key construction features Maximum temperature: up to 1000 °C High temperature uniformity in the working space of ± 5°C Highly efficient atmosphere circulation system Highly efficent system for load cooling Use of the most precise and modern instrumentation currently available Pit furnaces designed for operation with controlled atmosphere are equipped with the following main systems and subassemblies: 1. Robust and stable cylinder-type housing 2. Gas-tight retort with water cooling of flange 3. Ceramic-fiber insulation, with reduced heat...

Every retort pit type furnace is equipped with cascade furnace temperature control. This provides minimized heat-up time of the load and required temperature control accuracy. Basic functions of the control system include programmed control of processes as well as archiving of all necessary heat treatment process parameters. The control systems of individual furnaces can be connected to a SCADA computer system (Supervisory Control and Data Acquisition). This system provides archiving of all the necessary process parameters and databases for the materials, heat treated parts, process recipes...

I Main advantages of pit funaces processes □ Work flexibility, resulting from the speed of heating and cooling of the load □ Economic effectiveness, due to the relatively small requirements for media needed for furnace operation □ Easy service and maintenance □ Very high repeatability of processes and very precise heat treatment of various parts □ High accuracy of process control (temperature and carbon potential) □ Safe operation □ Ability to treat large parts □ Conformity with the AMS 2750 D

USA RETECH SYSTEMS LLC 100 Henry Station Rd. Ukiah,CA 95482, USA tel. +1 707 462 6522 fax+1 7074624103 Ieroy.b.leland@retechsy5temsllc.com www.retechsystemsllc.com CHINA SECO/WARWICK RETECH Thermal Equipment Manufacturing (Tianjin) Co., Ltd. 7B Second Xeda Road Tianjin, China 300385 tel.+86 22 238 28 300 fax+86 22 238 28 305 d.rabenda@secowarwlck.com.pl www.swretech.com.cn INDIA SECO WARWICK Allied Pvt. Ltd. 5th Floor, Amfotech It Park Road No. 8, Wagle Estate Thane (W) - 400 604, India tel.+91 22 6730 1400 fax+91 22 67301488 5wa-info@secowarwick.com www.secowarwick.com BRAZIL SECO/WARWICK...