News · Zhejiang Hainar Precision Equipment Co., Ltd.

应用说明 · Aug 12, 2026

Carbon Potential Control of Furnace Controlled Atmospheres

The success of carburizing and controlled-atmosphere heat treatment depends on stable carbon-potential control. This article explains the concept of carbon potential, the measurement principle of zirconia oxygen probes, and how mass flow controllers work with PID loops to adjust enriching gas automatically for precise closed-loop carbon-potential control.

应用说明 · Aug 12, 2026

Gas Control and Dissolved Oxygen Management in Bioreactors

In aerobic fermentation, dissolved oxygen (DO) directly shapes cell metabolism and product yield. This article outlines common cascade strategies for DO and pCO2 control, and shows how mass flow controllers and gas mixing systems combine with DO electrodes and off-gas analysis to form a complete loop from gas supply to metabolic monitoring.

应用说明 · Aug 12, 2026

Residual Gas Analysis (RGA) for Vacuum Leak Detection

When a vacuum system leaks, a total pressure gauge only shows a pressure rise—it cannot say which gas is entering. A residual gas analyzer (RGA) separates gases by mass; combined with a tracer-gas spray it locates real leaks, distinguishes outgassing and virtual leaks, and supports leak checking and process diagnosis.

应用说明 · Aug 12, 2026

Gas Control Essentials for Solar Cell Manufacturing

From PERC to TOPCon and HJT, efficiency gains in solar cells depend heavily on precise process gas control. This article reviews the gases used in PECVD and diffusion steps, the control essentials for key gases such as silane and ammonia, and safety and cleanliness considerations.

应用说明 · Aug 12, 2026

Gas Ratio and Control in Vacuum Coating Processes

The composition and properties of vacuum-coated films (especially magnetron sputtering) depend heavily on process gas ratios. This article explains the roles of sputtering and reactive gases, how to determine gas ratios, and how MFCs, gas mixing systems, and residual gas analyzers enable precise, stable atmosphere control.

选型指南 · Aug 12, 2026

MFC Selection Guide: From Process Conditions to Model

MFC (Mass Flow Controller) selection directly affects process repeatability and yield in semiconductor manufacturing. This guide covers media and range, accuracy and response, cleanliness and sealing, control modes and communication protocols, with practical recommendations for etch and deposition applications.

技术原理 · Jul 10, 2026

Why Operating Range and Proof Pressure Must Not Be Mixed

Break down seemingly similar pressure parameters by type and reference to avoid treating structural rating as continuous operation.

应用说明 · Jul 9, 2026

What to Confirm Before Device Communication Integration

Complete communication verification across physical interface, protocol parameters, data semantics, alarms and disconnect strategy.

应用说明 · Jul 8, 2026

How to Define Integrated Gas System Boundaries

Turn a component list into functional, interface, inspection and responsibility boundaries.

新闻资讯

Carbon Potential Control of Furnace Controlled Atmospheres

Gas Control and Dissolved Oxygen Management in Bioreactors

Residual Gas Analysis (RGA) for Vacuum Leak Detection

Gas Control Essentials for Solar Cell Manufacturing

Gas Ratio and Control in Vacuum Coating Processes

MFC Selection Guide: From Process Conditions to Model

Why Operating Range and Proof Pressure Must Not Be Mixed

What to Confirm Before Device Communication Integration

How to Define Integrated Gas System Boundaries