نتایج جستجو برای: compression molding

تعداد نتایج: 95634  

Journal: :E3S web of conferences 2022

The present work is to prepare the jute fiber reinforced epoxy composites by changing number of layers mat and adding various content zinc oxide filler. were prepared compression molding techniques investigates tensile, flexural impact properties according ASTM standard. results reveal that increasing layer was increased mechanical properties. maximum strength obtained in double-layer composite...

Journal: :dental research journal 0
farideh bahrani amir ali reza khaledi

background: debonding of denture teeth from denture bases is the most common failure in removable dentures. the purpose of this study was to evaluate the effect of surface treatments on shear bond strength of denture teeth to heat-polymerized and autopolymerized denture base resins. materials and methods: in this experimental in vitro study, 60 maxillary central incisor acrylic teeth were divid...

Journal: :Expert Syst. Appl. 2012
Long Wu Kit-lun Yick Sun-pui Ng Joanne Yip

Currently, foam molding technologies are widely adopted for most bra styles, which demonstrate the incomparable advantages in the contemporary intimate apparel industry. The determination of proper molding conditions, such as molding temperatures and length of time on the basis of cup sizes and styles, is crucial in achieving the required cup shape with high stability, which is regarded as the ...

2016
Dragan Kusić Janez Grum Dimitrios G. Aggelis Nathalie Godin

This paper presents measurements of acoustic emission (AE) signals during the injection molding of polypropylene with new and damaged mold. The damaged injection mold has cracks induced by laser surface heat treatment. Standard test specimens were injection molded, commonly used for examining the shrinkage behavior of various thermoplastic materials. The measured AE burst signals during injecti...

2014

Molding process in IC manufacturing secures chips against the harms done by hot, moisture or other external forces. While a chip was being molded, defects like cracks, dilapidation, or voids may be embedding on the molding surface. The molding surfaces the study poises to treat and the ones on the market, though, differ in the surface where texture similar to defects is everywhere. Manual inspe...

Journal: :The Journal of prosthetic dentistry 2015
Himanshi Aggarwal Pradeep Kumar

Dear Editor: We read with great interest the article by Namratha and Shetty entitled “A Technique to Evaluate Custom Tray Border Extensions Before Peripheral Molding.” Articles related to evaluation of denture border extensions are numerous, but there is marked paucity of literature regarding evaluation of border extensions of custom trays before border molding. The authors have introduced a co...

A Jahanbin

Introduction: Cleft lip and palate is a congenital anomaly occurring in 3 in 1000 live birth. One the major concern in this patient is about cleft gap and its surgical problems. Several surgical and non-surgical procedures have been done to decrease this gap. They aimed to achieve the more esthetic results as well as feeding success. Nasoalveolar Molding (NAM) is a new method for reshaping nasa...

Journal: :Journal of engineering 2022

The increasing use of composites reinforced with vegetable fibers in the industrial field poses a serious problem reliability structures produced. For us, this credibility can be ensured when developing composite, by judicious choice matrix and reinforcement, leading to obtaining material having acceptable mechanical physicochemical characteristics. main objective study is characterize composit...

2012
Hong-Seok Park Xuan-Phuong Dang

Injection molding has been the most popular method for making plastic products due to high efficiency and manufacturability. The injection molding process includes three significant stages: filling and packing stage, cooling stage, and ejection stage. Among these stages, cooling stage is very important one because it mainly affects the productivity and molding quality. Normally, 70%~80% of the ...

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