Thermocouple

The ultra-fast cycle thin-wall injection molding requires ultrahigh thermal response speed of thermocouple, and the typical thick-wall armored sensors have big thermal mass, which lead to noticeable t

In many mold manufacturers, aging and damaged thermocouples are constantly cleaned, calibrated and patched to minimize spare parts expense. However, repaired faulty sensors will continually break down

The jump of thermocouple temperature signal is generally caused by electromagnetic interference generated by the injection molding servo motors, high-power heating coils and frequency converters, whic

Most of injection molding workshops just control thermocouples through simple inventory statistics of spare parts. They do not have complete process tracking from incoming inspection of procurement, m

Many hot runner molds are held in a low-temperature heat standby for days or weeks during order intervals. Thermocouples under long-term continual low heat will generate concealed zero drift, which wi

Workshops have two basic ways of checking the accuracy of thermocouples, contact portable thermometers and non-contact infrared pyrometers. The two technologies have different applicable circumstances

Many hot runner manufacturers apply surface coating treatments, such as nitriding, DLC diamond coating, PTFE anti-stick coating on manifolds and nozzles to prevent mold steel corrosion, plastic adhesi

Ubiquitous hidden thermocouple fault is the slow temperature response, which is characterized by the controller temperature curve lagging behind the real hot runner temperature change, leading to late

Hot runner nozzle thermocouples have two structural forms, namely fixed integrated mounting and detachable removable mounting, each with its own advantages, maintenance limits and relevant production

Alternating temperature and humidity cycling is a composite environmental stress that leads to significant damage to magnesium oxide insulation inside armored thermocouples. This is a factor of aging

Traditional two-pin screw fixed thermocouple plugs are easy to loose under long-term machine vibration, and it is time-consuming to disassemble for multi-cavity molds with dozens of wire channels. The

During thermocouple installation, high-temperature anti-seize lubricant is frequently applied to prevent thermal expansion bonding of seized probes and flat heads. However, the unrecognized thermal in