rèn nóng
Definition
- Verb (Technical/Metallurgy):
- To hot-forge: The process of shaping heated metal, typically iron or steel, using compressive force from a hammer or press. The metal is heated to a temperature where it becomes malleable but not molten, allowing it to be formed into a desired shape.
- To forge hot: A general term for any forging operation performed on metal that has been heated to a high temperature to increase its workability.
Usage Examples
- Verb:
- Thép thường được rèn nóng để tạo ra các công cụ bền. (Steel is usually hot-forged to create durable tools.)
- Người thợ rèn đang rèn nóng một thanh sắt. (The blacksmith is hot-forging an iron bar.)
- Phương pháp rèn nóng giúp kim loại dễ định hình hơn. (The hot-forging method makes metal easier to shape.)
Advanced Usage
- Technical Context: In industrial manufacturing, "rèn nóng" specifies a forging process contrasted with "rèn nguội" (cold forging). It is critical for creating high-strength components like crankshafts, connecting rods, and hand tools.
- Bánh răng này được sản xuất bằng công nghệ rèn nóng. (This gear was produced using hot-forging technology.)
Variants and Related Words
Rèn (v): to forge, to smith. The general act of shaping metal.
- Ông ấy biết cách rèn dao. (He knows how to forge knives.)
Rèn nguội (v): to cold-forge. Shaping metal at or near room temperature.
- Rèn nguội thích hợp cho kim loại dẻo. (Cold-forging is suitable for ductile metals.)
Synonyms
- To hot-forge: The direct technical equivalent.
- To forge (hot): A more general term, often clarified by context.
- To hammer (hot): Describes the action within the forging process.
Related Terms and Phrases
Lò rèn: forge (the furnace or hearth).
- Kim loại được nung trong lò rèn. (The metal is heated in the forge.)
Búa rèn: forging hammer.
- Tiếng búa rèn vang lên đều đặn. (The sound of the forging hammer rang out steadily.)