Pit Type Furnace for Large-size Annular Parts

Specifications

Pit/Well Type Heat Treatment Furnace for Large-size Annular Parts  

      This well type annular parts heat treatment furnace is specially aimed at annular flange parts producers with max furnace diameter at 8.5m. The furnace is comprised of furnace body, furnace cap and control system.

Structure introduction

The furnace body is a weldment of sectional steel and steel plates.

The furnace body is specially designed with chrome-manganese-nitrogen mouth ring to protect the heat preservation cotton from damage by the workpieces and thus keep the furnace temperature uniformity. The heating components are the high-resistance OC25AL5 heating belts. The furnace body is lined with high-pure silicate aluminum fiber cotton blocks. The inside wall is suspended with heating components.

The furnace bottom is weight-bearing, and therefore is laid with high-aluminum refractory bricks. The furnace bottom is also covered with chrome-manganese-nitrogen sizing blocks to increase the temperature uniformity.

The furnace cap is lifted by the hydraulic mechanism. recording: colored LED non-paper recorder to record the process curve.

Temperature control: 10-segment control

Control system :

PID control

Double protection by contactor and SCR. K-type porcelain thermal coupling;