高クロム耐摩耗性ブロックおよびプレート

BTMCr26 and BTMCr32 Specifications

BTMCr26 High Chromium Wear-Resistant Block:
BTMCr26は耐久性と耐摩耗性で知られています.

BTMCr32 高クロム石炭ミル反撃プレート:
BTMCr32プレート, 石炭工場で使用される, 熱処理中に重大な課題に直面する.

Heat Treatment Challenges

Scrap Rates:

• 中小皿 (まで 1000 mm× 500 mm× 25 mm): Scrap rate is typically 10-15%.
• Large plates (above these dimensions): Scrap rate can be around 50%.
• Average annual scrap rate: 約 16%.

Production Difficulties:
The diverse specifications and geometric shapes make production challenging.

Causes of Cracking

Factors Contributing to Cracking:

• Intrinsic quality of the casting.
• Appearance quality.
• Size and geometry.
• 化学組成.

しかし, the primary cause is the heating and cooling conditions during heat treatment.

Volume Changes During Heat Treatment:

• 加熱: Volume increases.
• 冷却: Volume decreases.
• Stress and Cracking: Rapid heating increases volume quickly, causing stress and cracks. If the liner is placed too tightly in the sand box, restricted volume expansion also leads to stress and cracking.

泰達江華金属 -17 年
鋼板・鋼板サプライヤー

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