| 词条 | Molding (process) | ||||
| 释义 |
Molding or moulding (see spelling differences) is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix.[1] This itself may have been made using a pattern or model of the final object. A mold or mould is a hollowed-out block that is filled with a liquid or pliable material such as plastic, glass, metal, or ceramic raw material.[2] The liquid hardens or sets inside the mold, adopting its shape. A mold is the counterpart to a cast. The very common bi-valve molding process uses two molds, one for each half of the object. Articulated moulds have multiple pieces that come together to form the complete mold, and then disassemble to release the finished casting; they are expensive, but necessary when the casting shape has complex overhangs.[3]{{better source needed|date=December 2017}} Piece-molding uses a number of different molds, each creating a section of a complicated object. This is generally only used for larger and more valuable objects. A manufacturer who makes molds is called a moldmaker. A release agent is typically used to make removal of the hardened/set substance from the mold easily. Typical uses for molded plastics include molded furniture, molded household goods, molded cases, and structural materials. TypesThere are several types of molding methods.[4] These include:
GallerySee also{{Portal| Engineering }}
References1. ^{{cite web|url=http://www.merriam-webster.com/dictionary/molding|title=Molding – Definition of molding by Merriam-Webster|work=merriam-webster.com}} {{Industry-stub}}模塑2. ^{{cite web|url=http://www.merriam-webster.com/dictionary/mold|title=Mold – Definition of mold by Merriam-Webster|work=merriam-webster.com}} 3. ^{{cite journal|url=https://patents.google.com/patent/US9296168B2/en|title=Articulated mold assembly and method of use thereof|author=|date=14 March 2013|website=google.com|accessdate=19 March 2018}} 4. ^{{Cite book|url=https://books.google.com/books?id=-YSTDAAAQBAJ&pg=PA154&dq=%C2%A0There+are+several+types+of+molding+techniques&hl=en&sa=X&ved=0ahUKEwju8eCTtvrUAhVG3GMKHQ7vCUEQ6AEIMDAC#v=onepage&q=%C2%A0There%20are%20several%20types%20of%20molding%20techniques&f=false|title=Materials Technology|last=Dean|first=Yvonne|date=July 2016|publisher=Routledge|isbn=9781315504285}} 1 : Molding processes |
||||
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。