System Core: Chipdaq‑CP Carbon Potential Controller
Chipdaq‑CP is a fully‑isolated dedicated carbon‑potential controller developed for heat‑treatment carburizing processes. Featuring purely self‑developed domestic hardware and performance comparable to imported carbon‑potential controllers, it adapts to harsh industrial environments with heavy electromagnetic interference at well‑type furnace sites.
Accurate Ternary Carbon‑Potential Calculation
It receives oxygen potential from the oxygen probe, furnace thermocouple temperature and CO compensation signals. Real‑time carbon‑potential calculation inside the furnace is performed based on heat‑treatment thermodynamic models, effectively mitigating measurement errors caused by atmosphere fluctuation. Carbon‑potential control accuracy reaches ±0.02% C, ensuring repeatable carburizing processes.
Large‑Capacity Process Curves for Full‑Sequence Well‑Type Carburizing
Multiple sets of programmable process curves are built‑in; each curve supports multi‑segment programming to enable fully‑automatic operation including heating, boost carburizing, diffusion, cooling and carbon‑potential holding. Intra‑segment cycle and rate‑mode control are available to satisfy diverse process requirements such as shallow/deep case carburizing and carbonitriding, minimizing frequent manual intervention.
Fully‑Isolated Hardware for Strong On‑Site Interference Resistance
Fully‑isolated acquisition circuits are implemented with hardware optimization targeting high‑power heating, contactor switching and ground‑loop interference commonly seen in well‑type furnace workshops. Weak millivolt‑level signals from oxygen probes remain robust against disturbance, reducing carbon‑potential fluctuation and false alarms for enhanced long‑term continuous‑operation stability.
Dual‑Sensor Redundant Protection (Optional)
Dual oxygen‑probe input is supported. Upon coking, aging or failure of one probe, the controller can automatically switch to the backup channel to avoid scrapping of an entire batch of workpieces, ideal for well‑type furnaces running prolonged continuous production. Linked output for oxygen‑probe decoking is provided for automatic probe maintenance.
Versatile Output and Communication Capabilities
PID analog outputs and relay outputs can directly drive gas solenoid valves and drip‑feed actuators. Modbus‑RTU is standard; Ethernet‑based Modbus‑TCP is optional for connection to host‑computer software to realize remote monitoring, process downloading, historical curve logging and traceable production data, complying with process‑archiving requirements for the heat‑treatment industry.
Multi‑Dimensional Fault Alarming
Comprehensive alarms are triggered for carbon‑potential deviation, temperature out‑of‑range, sensor wire breakage, heater failure, probe abnormality and other faults. Audible‑visual alerts plus relay alarm outputs notify operators promptly to prevent mass quality failures.
Composition of the Complete Well‑Type Furnace Carbon‑Potential Control System
Core Control Unit: Chipdaq‑CP Carbon Potential Controller
Detection Units: Zirconia oxygen probe, furnace thermocouple, CO compensation detection module (optional)
Actuation Units: Solenoid valves / flow actuators for enriching gas, carrier gas and ammonia gas
Auxiliary Unit: Automatic decoking maintenance module for oxygen probe
Monitoring Unit: Host‑computer configuration software (optional: process logging, curve playback, report export)
Main Application Scenarios
✅ Well‑type gas carburizing furnaces: carburizing treatment for transmission shafts, gears and large fasteners ✅ Well‑type carbonitriding furnaces: carbonitriding processes for gears and bearing components ✅ Well‑type protective‑atmosphere heating furnaces: protective‑atmosphere control for bright quenching and annealing ✅ Automation retrofitting for legacy equipment: upgrade of instrumentation on old well‑type furnaces; replacement of imported carbon‑potential controllers to cut procurement and after‑sales costs
Solution Advantages
Complete domestically‑developed solution; self‑owned hardware and algorithm for the core Chipdaq‑CP controller, with short lead‑time plus local on‑site commissioning and after‑sales support.
Coordinated closed‑loop control of carbon potential and temperature mitigates furnace‑gas circulation fluctuation within large well‑type furnace chambers and improves quality consistency across workpiece batches.
Complete process records with storable and exportable data facilitate quality traceability, meeting quality‑inspection audit requirements for automotive parts and mechanical‑component heat‑treatment.
Flexible configuration: supports standalone local operation on the controller or centralized management via host computer, adapting to factories with different automation maturity levels.
Fully‑isolated hardware design delivers stable and reliable long‑term operation under harsh workshop conditions featuring high temperature, dust and electromagnetic interference.
Conclusion
Backed by robust carbon‑potential algorithms and industrial‑grade hardware of the Chipdaq‑CP carbon potential controller, Dekun Technology's well‑type furnace carbon‑potential control system helps heat‑treatment enterprises stabilize carburizing processes, lower workpiece scrap rates and achieve automated controllable‑atmosphere production for well‑type furnaces. It serves as a cost‑effective domestic alternative to imported carbon‑potential controllers.