Technology & Services

Typical Defects in Sand Casting and DISOCO's Quality Control Measures

Typical Defects in Sand Casting and DISOCO's Quality Control Measures
砂型鋳造における代表的な欠陥と、DISOCOの品質管理対策
Sand casting is a manufacturing method that allows for efficient and flexible production of small to medium-sized mechanical parts. However, if sand moisture, molten metal temperature, mold design, and other factors are not properly managed, defects such as pinholes, shrinkage cavities, and dimensional inaccuracies are prone to occur, leading to an increase in defect rates.
At DISOCO, we combine SINTO-made automatic sand molding lines, SolidCast simulation software, a stringent quality inspection system, and management by skilled operators to minimize casting defects and stabilize quality.
■ 代表的な欠陥とDISOCOの改善策
● ピンホール/ブローホール(ガス欠陥)
原因: 砂の過湿、ガス抜き不足
DISOCOの対策:
SINTO製砂分析装置による水分管理
正しい中子処理で通気性を確保
● 引け巣/凝固不良
原因: 冷却速度の不均一
DISOCOの対策:
SolidCastで溶湯流動・凝固解析を実施
最適な押湯・湯道設計を行う
● 寸法不良・型ずれ
原因: 型合わせ不良、固定・セットアップミス
DISOCOの対策:
高精度の自動砂型造型機を使用
造型パターンおよび治具の標準化
● 表面荒れ・金属焼付き
原因: 温度管理の不備、砂品質の低下
DISOCOの対策:
自動注湯システムによる溶湯温度管理
各溶解ロットごとの金属成分分析
■ DISOCOの品質管理システム
SINTO社製 自動砂型造型ライン
造型サイクル:30秒/型、最大70kgまで対応
鋳物砂の専門管理
圧縮強度、水分、耐圧強度を各シフトごとに分析
SolidCastシミュレーション
欠陥発生を事前予測し、湯流れ・冷却設計を最適化
鋳造後検査
3次元測定機(CMM)
超音波探傷、磁粉探傷
硬度試験、化学成分分析
これらの工程管理と自動化された砂型鋳造ラインにより、DISOCOは鋳造欠陥を大幅に削減し、日本・米国・FDI企業向けの安定した品質を長年にわたり提供しています。
■ 詳細資料(PDF)をご希望の方、またはベトナムでの砂型鋳造をご検討中の企業様へ
お気軽にお問い合わせください。
DISOCOは、最適な砂型鋳造ソリューションをご提案いたします。

Company Information

SONG CONG DIESEL ONE MEMBER COMPANY LIMITED

Main 3 Products

Green sand casting components. / Burnt sample casting components. / Hot forging components

Our company specializes in casting, forging, stamping, heat treatment, mainly manufacturing engine parts. Currently, the company is conducting transactions with many Japanese enterprises, as well as p ...

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