Definition

1. Noun (Technical Term):
   • Flux: A substance used in metallurgy and other high-temperature processes to promote fusion, lower the melting point of a material, or prevent oxidation by forming a protective slag.

Usage Examples

• Noun:
  • Trong quá trình hàn, trợ dung được sử dụng để làm sạch mối hàn. (In the welding process, flux is used to clean the weld joint.)
  • Chất trợ dung giúp giảm nhiệt độ nóng chảy của quặng. (The flux helps to lower the melting point of the ore.)

Advanced Usage

• "chất trợ dung": This is the most common full term, explicitly meaning "flux substance" or "flux material."
  • Việc lựa chọn chất trợ dung phù hợp rất quan trọng trong luyện kim. (Choosing the appropriate flux is very important in metallurgy.)

Variants and Related Words

• Thuốc hàn (n): While often translated as "solder," in technical contexts it can imply a filler metal with a flux core, related to the function of in joining metals.
• Làm sạch bằng trợ dung (v phrase): to clean/flux using a flux agent.

Synonyms

• Flux: The direct and primary technical equivalent.
• Fusing agent: A descriptive synonym highlighting its function in promoting fusion.

Notes on Usage

• Technical Context: The word "trợ dung" is highly specialized and is almost exclusively used in scientific, industrial, and engineering contexts such as metallurgy, welding, ceramics, and glassmaking. It is not a term found in everyday conversation.
• Clarification: The reference definition "fondant" from the Vietnamese-French dictionary is accurate, as "fondant" in French technical language can mean "flux." It does not refer to the sugary icing used in baking.