Application Equipment: High-Temperature Creep and Endurance Testing Machine

Product Models Used: AI-808, AI-886

Process Overview:
Creep and Endurance Testing Machines are widely used in industries such as mechanical metallurgy, national defense and military, aerospace, automotive manufacturing, research institutes, universities, and relevant quality inspection organizations. They are primarily used for creep and endurance testing of aviation metal materials and high-strength fasteners under high-temperature environments. Additionally, they can perform stress endurance testing, hydrogen embrittlement tests, stress relaxation tests, high-temperature tensile tests, and room-temperature tensile tests to evaluate mechanical properties.

Field Application Description:
The Yudian AI-808 and AI-886 temperature controllers output a 4-20mA signal for PID control of solid-state relays (SSRs). The output terminals of the SSRs are connected to the heating elements of the atmospheric furnace. This analog phase-angle triggering method minimizes the impact on the heating elements of the atmospheric furnace, thereby extending their service life. Additionally, the controllers provide RS-485 communication signals for connection to the host computer.

Problems Solved for Customers:
The Yudian AI-808 and AI-886 temperature controllers meet the temperature control requirements of special equipment (such as atmospheric furnaces or environmental chambers), ensuring long-term stability and fulfilling the basic conditions for creep testing. They also meet the high-precision requirement of 0.1-grade measurement accuracy.

Value Delivered to Customers:
Under equivalent precision and control requirements, the cost of Yudian's products is lower than that of imported instruments, reducing overall costs. As a self-developed product by Yudian, it ensures timely pre-sales and after-sales support.

Customer Feedback:
The controllers demonstrate excellent stability, support multiple input and output signal types, and offer good scalability. Their modular output design facilitates convenient maintenance of the instruments in the later stages.