- foundry defect
- 铸造缺陷, 铸件缺陷
English-Chinese machine dictionary (英汉机械大词典). 2013.
foundry defect
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Foundry sand testing — Sand in the foundry industry is the most commonly used, least understood substance. In a sand casting foundry (Refer to Sand Casting) the sands which are used for making moulds or cores are mainly of following types. 1. Green Sand 2. Resin Coated … Wikipedia
Casting defect — A casting defect is an irregularity in the metal casting process that is undesired. Some defects can be tolerated while others can be repaired otherwise they must be eliminated. They are broken down into five main categories: gas porosity,… … Wikipedia
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Chill (foundry) — A Chill is an object used in making metal castings.Molten metal when poured into a sand mold will cool at a certain rate, depending upon the thickness of the casting. If it is noticed that a shrink porosity defect occurs at a certain location in… … Wikipedia
Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… … Wikipedia
Bull bridge accident — As a goods train was passing over a cast iron bridge at Bullbridge, near Ambergate in Derbyshire on 26 September 1860, it failed suddenly and derailed most of the train of wagons. There were fortunately no casualties, but it was a warning of the… … Wikipedia
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United Airlines Flight 232 — N1819U on its final descent, with visible damage on the horizontal stabilizer and fuselage tail cone Accident summary Date … Wikipedia
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Semiconductor device fabrication — Semiconductor manufacturing processes 10 µm 1971 3 µm 1975 1.5 µm 1982 … Wikipedia
Electronic design automation — (EDA) is the category of tools for designing and producing electronic systems ranging from printed circuit boards (PCBs) to integrated circuits. This is sometimes referred to as ECAD (electronic computer aided design) or just CAD. (Printed… … Wikipedia
