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Topics referred to by the same term
Look up preform in Wiktionary, the free dictionary. Preform may refer to: Preform, a piece of glass used to draw an optical fiber Preform, a piece of
Preform
Light-conducting fiber
large-diameter preform with a carefully controlled refractive index profile, and then pulling the preform to form the long, thin optical fiber. The preform is commonly
Optical_fiber
Composite material made of a polymer matrix reinforced with fibres
polymers.[citation needed] Fibre preforms are how the fibres are manufactured before being bonded to the matrix. Fibre preforms are often manufactured in sheets
Fibre-reinforced_plastic
Unfinished Texas particle accelerator canceled in 1993
The Superconducting Super Collider (SSC), nicknamed Desertron, was a particle accelerator complex under construction from 1991 to 1993 near Waxahachie
Superconducting Super Collider
Superconducting_Super_Collider
Manufacturing process for forming and joining together hollow plastic parts
molding. The blow molding process begins with softening plastic by heating a preform or parison. The parison is a tube-like piece of plastic with a hole in
Blow_molding
Process of fashioning stones or rocks into tools and weapons
steps have yet been taken to shape them, or they become a preform. The next stage creates a preform, or roughly shaped piece of stone, that probably reveals
Lithic_reduction
Production of optical glass without grinding and polishing
whereas other preforms require grinding and polishing. The following section describes basic traits of preform choice: Formed Ball Preform “Used specifically
Precision_glass_moulding
Manufacturing process
Injection moulding (U.S. spelling: Injection molding) is a manufacturing process for producing parts by injecting molten material into a mould, or mold
Injection_moulding
Alloy used to join metal pieces
Many methods are used to manufacture the solder preform, stamping being the most common. The solder preform may include the solder flux needed for the soldering
Solder
Polymer
the magnetic audio and videotape application. Water-resistant paper. PET preform for injection stretch blow moulding of a bottle A finished PET bottle A
Polyethylene_terephthalate
Loan that is unlikely to be repaid
A non-performing loan (NPL) or non-performing asset (NPA) is a bank loan that is subject to late repayment or is unlikely to be repaid by the borrower
Non-performing_loan
Drawing optical fiber
drawing tower produces a fine glass filament by drawing a glass preform. The tip of the preform is heated to melting temperature and then a strand of molten
Drawing_tower
Antiquated theory in biology
In the history of biology, preformationism (or preformism) is a formerly popular theory that organisms develop from miniature versions of themselves. Instead
Preformationism
American manufacturer of 3D printers
called PreForm, designed to prepare 3D models for printing on the Form 1, Form 1+, Form 2, Form 3, and Fuse 1. Some of the features of PreForm include
Formlabs
Three-dimensional composites use fiber preforms constructed from yarns or tows arranged into complex three-dimensional structures. These can be created
3D_composites
Dresden. At the beginning handmade stitched reinforcement structures (preforms) were manufactured initialized by an industry inquiry about stress adapted
Tailored_fiber_placement
Ceramic engineering process
engineering process whereby matrix material is infiltrated into fibrous preforms by the use of reactive gases at elevated temperature to form fiber-reinforced
Chemical_vapor_infiltration
makes a tool from the core by reducing it to a rough unifacial or bifacial preform, which is further reduced by using soft hammer flaking or by pressure flaking
Stone_tool
Method of molding
the neck to free it from the core. The preforms for compression molded golf ball centers are extruded. The preform has a 1 inch by 1 inch round slug that
Compression_molding
000 MT of PET, HDPE, PP grade plastics in bottles, containers, and PET preforms per annum. Manjushree was founded by Vimal Kedia and Surendra Kedia in
Manjushree_Technopack
Metal-joining technique
Rectangular frame shaped preforms are often required for the construction of electronic packages while washer shaped brazing preforms are typically utilized
Brazing
Metalworking process
integrate impression-die forging. One method incorporates casting a forging preform from liquid metal. The casting is removed after it has solidified, but
Forging
Manufacturing process in which casting material is forced into a mold
desired, the mold is first pre-loaded with a reinforcing fiber matrix or preform. Fiber content of a transfer molded composite can be as high as 60% by
Transfer_molding
Austrian plastics manufacturer
specialising in blow-moulded bottles and caps, injection-moulded parts, preforms and tubes. It is one of the largest producers of rigid plastic packaging
Alpla
Composite material consisting of ceramic fibers in a ceramic matrix
fiber-preform or simply preform. For the second step, five different procedures are used to fill the ceramic matrix in between the fibers of the preform: Deposition
Ceramic_matrix_composite
In materials science
applications. Various approaches based on the bulk (particulate processing), preform processing, layer processing and melt processing are used to fabricate
Functionally_graded_material
Chemical used in metallurgy for cleaning or purifying molten metal
surface of the filler metal preform. Exposed surfaces also require protection against oxidation during heating. Flux-coated preforms can also be used to eliminate
Flux_(metallurgy)
Packaging company
October 2015, the US$55 million acquisition of Encon, a privately owned preform manufacturing business in the United States, was completed. In December
Amcor
Class of optical fiber based on the properties of photonic crystals
optical fibers: first, one constructs a "preform" on the scale of centimeters in size, and then heats the preform and draws it down to a much smaller diameter
Photonic-crystal_fiber
Metal matrix composite
are typically manufactured by near net shape approach, by creating a SiC preform by metal injection molding of an SiC-binder slurry, firing to remove the
AlSiC
z-properties in the dry preform is comparably low because tufting comprises no force-fit. Consequently, before consolidation, tufted preforms are not easier to
Tufting_(composites)
in a preform, using conventional techniques developed with CVD. Following the growth of the fibers, the gas is again infiltrated into the preform to densify
SiC–SiC_matrix_composite
Narrow-necked container
Retrieved 9 August 2026. "What is PCO 1881 Neck Finish? A Complete Guide to Preforms and Blow Molds". PETmolder. Retrieved 9 August 2026. "Voluntary Guideline
Plastic_bottle
Plants that grow at high elevation
Glory-of-the-Snow is an alpine plant that preforms its flowers in the previous season so that it can flower as soon as the snow starts to melt in spring
Alpine_plant
Swedish politician, lawyer and businessman
Stockholm University. He also studied political science. Ljungman's company 3P PreForm Marketing and Research began performing research and development work for
Mikael_Ljungman
British Second World War portable temporary harbours
Transport at the War Office. The chosen design was based on a Lobnitz Dredger preform. The design was approved after 13 months of testing. The works were let
Mulberry_harbours
NetBSD, OpenBSD OrcaSlicer OrcaSlicer community Windows, macOS, Linux PreForm Formlabs Windows, macOS Polar Cloud Polar3D Web application PrusaSlicer
List_of_3D_printing_software
Academy in Birmingham, England
It is part of the BOA Group which also contains BOA Creative Digital Preforming Arts Academy and BOA Stage and Screen Academy. The application to make
BOA Digital Technologies Academy
BOA_Digital_Technologies_Academy
Type of plastic reinforced by glass fiber
chopped strand mat cast over a thermoplastic inner tank which acts as a preform during construction. Much more reliable tanks are made using woven mat
Fiberglass
Chinese power and fiber optic cable manufacturer
OFS, a US subsidiary of Furukawa Electric, to manufacture optical fiber preforms. In 2012, the company announced a joint venture in Brazil with local cable
Hengtong
Archaeological site in Wyoming, U.S.
Bone needle and needle preform reconstructions and Micro-CT scans of comparative faunal specimens from the La Prele site, Wyoming, USA
La_Prele_Mammoth_Site
Russian petrochemical sector founder (born 1962)
integrating it into his company Retal Industries [ru], which owned 10 PET preform manufacturing facilities in Lithuania, Bulgaria, Italy, and France, he
Iakov_Goldovskiy
American inventor and engineer (born 1943)
research. As part of this featured collection, Partus co-authored the paper "Preform Fabrication and Fiber Drawing by Western Electric Product Engineering Control
Fred_Paul_Partus
New World prehistoric projectile
patterns. This is particularly easy to see when comparing the unfinished preforms of Clovis and Folsom points. Analysis of radiocarbon dates suggests that
Clovis_point
Type of closure for bottles
Retrieved 2026-08-09. "What is PCO 1881 Neck Finish? A Complete Guide to Preforms and Blow Molds". PETmolder. Retrieved 2026-08-09. Nairn, J F (2010), "Closures
Screw_cap
Nuristani goddess
that the word is cognate with the Vedic Sanskrit term Dhiṣáṇā, via a preform *Dhiṣanikā. It has also been etymologized by Nuristani speakers themselves
Disani
Chemical reaction
several hours. If this is unsuccessful, then preforming the betaine may give better results. To preform the betaine, add DEAD to triphenylphosphine in
Mitsunobu_reaction
French liquid packaging company
blow moulding, filling and capping. In the same year, the first Sidel dry preforms decontamination by H2O2 spray was launched with the Combi Disis. The development
Sidel
additional structural elements such as metal and plastic fasteners, composite preforms). The machines can produce a variety of topologies that were more difficult
Complete_garment_knitting
Primitive weapon component
followed this several years later with a three-volume study of "Selected Preforms, Points and Knives of the North American Indians". Another recent set of
Projectile_point
Process of joining metal pieces with heated filler metal
composition. For soldering 44-pin chip carriers to a board using soldering preforms, power levels were on the order of 10 watts and solder times approximately
Soldering
Metal forming process
forgeable metal can also be forge-rolled. Forge rolling is mainly used to preform long-scaled billets through targeted mass distribution for parts such as
Rolling_(metalworking)
Military leader of Ahhiya
derived from the Mycenaean *Atrehiās. This could then be derived from a preform *Atresias, *Atersias or *Atarsias, more readily connectable with Attarsiya
Attarsiya
Grooves in a weapon barrel for accuracy
and often the chamber as well (hammer forging); Flow forming the barrel preform over a mandrel containing a reverse image of the rifling (rifling by flow
Rifling
Chemical compound
2003, employs reactive liquid infiltration of magnesium inside a granular preform of boron powders and was called Mg-RLI technique. The method allowed the
Magnesium_diboride
of chert common to the Ouachita Mountains. Based on a large amount of preforms, blanks, and rejected cores found near the site it is now theorized this
Hell's Half Acre (Hot Springs, Arkansas)
Hell's_Half_Acre_(Hot_Springs,_Arkansas)
Passage of an object through the gases of an atmosphere from outer space
heat shield. Phenolic-impregnated carbon ablator (PICA) is a carbon fiber preform impregnated in phenolic resin. It has the advantages of low density (much
Atmospheric_entry
Stone tool
effort has been made to reduce the thickness of the flake or core Either a preform or crude formalized tool, such as an adze Finer formalized tool types such
Hand_axe
Etruscan hypogeum (burial chamber) in Tarquinia, Italy
of Larth Hulchnie and Marce Caliathe. "Marce" is probably a cognate or preform of "Marcus". "Hulchnie" is generally interpreted as the Roman gens "Fulcinius"
Tomb_of_Orcus
American manufacturing company
Inc Medical device industry May 9, 2011 Coining Holding Company Metal preforms, microstampings and bonding wire solutions Oct 17, 2011 Reichert Technologies
Ametek
Private equity fund in Peru
Financiera Uno and Grupo UTP, and acquired San Miguel Industrias PET in 2013, a preform and bottle manufacturer with regional presence, Zegel IPAE in 2014, Intralot
Nexus_Group
multiple processes in sequence. CVI involves the infiltration of a porous preform, typically made of fibers, with a gas-phase precursor that decomposes at
Ultra-high temperature ceramic matrix composite
Ultra-high_temperature_ceramic_matrix_composite
Prehistoric culture in the Americas c. 11,100–10,800 BCE
cutting tools, preforms (partially shaped precursors) for formal tools such as points, and as portable sources of large flakes useful as preforms or tools.
Clovis_culture
informative, irreformable, malformation, nonconformance, perform, performance, preform, preformat, reform, reformable, reformat, reformation, reformatory, transform
List of Latin words with English derivatives
List_of_Latin_words_with_English_derivatives
Capital city of Buenos Aires Province, Argentina
manufacturer based in the La Plata industrial park and dedicated to PET preforms. Snoop Consulting, a software company that opened a development center
La_Plata
Japanese researcher (born 1941)
Technical Journal (in Japanese): 94–99. VAD法光ファイバ母材製造装置 [VAD optical-fiber preform manufacturing apparatus] (in Japanese). NTT History Center of Technologies
Tatsuo_Izawa
Stone projectile points once used in ancient North America
Paperbacks. May 1997. ISBN 0-06-101173-8. Perino, Gregory (1985). Selected preforms, points and knives of the North American Indians, Vol. 1. Hyneck Printing
Folsom_point
Type of metal fluoride glass
improvement of manufacturing processes, raw material purity, and improved preform and fiber designs, which allowed these fibers to approach the theoretical
ZBLAN
Science and technology of creating objects from inorganic, non-metallic materials
reinforcement are chemical vapor infiltration and the infiltration of fiber preforms with organic precursor, which after pyrolysis yield an amorphous ceramic
Ceramic_engineering
Aluminium-silicon alloy
cylinder sleeve pre-form which is inserted into the casting mold. This preform contains silicon particles suspended in a resin binder. During the casting
Alusil
Industry group
Electrical Switches (Xen), Flour Mills (MRFM), Construction, Water Bottle Preforms. Some of the industry products act as a front for surrogate advertising
Manikchand_Group
Iranian consumer goods company
toothbrush. Additionally the company is specialized in producing various PET Preforms and PE/PP Caps and bottles. Pakhshe Padideh Paydar This company distribute
Golrang_Industrial_Group
Optical fiber designed to carry only a single mode of light, the transverse mode
a high melting point and a low refractive index. They made cylindrical preforms by depositing purified materials from the vapor phase, adding carefully
Single-mode_optical_fiber
Indian beverage company
confectionery, snacks Parle Agro also diversified into production of PET preforms (semi-finished bottles) in 1996. Its customers include companies in the
Parle_Agro
Series of concerts
but correlate thematically. The Star Wars concert series is scheduled to preform again internationally through 2026 and 2027, coinciding with the 50th anniversary
Star_Wars:_In_Concert
Term used in behavioral sciences and urban planning
potential to actively transform a given space. Music denoting place can "preform" a knowledge of social boundaries and hierarchies that people use to negotiate
Sense_of_place
Types of alloy used for brazing
etching, or other methods can transform the cooled metal into parts or preforms. A key characteristic of ABFs is their relatively low melting points, which
Amorphous_brazing_foil
Type of distributed Bragg reflector constructed in a short segment of optical fiber
separately. Today, production lines typically draw the fiber from the preform and 'write' the grating, all in a single stage. As well as reducing associated
Fiber_Bragg_grating
Composite material consisting of fibers or particles in a metallic matrix
cast iron while retaining similar stiffness. 3M has also used alumina preforms for AMC pushrods. Cosworth uses a metal matrix composite piston for their
Metal_matrix_composite
Delivery plan in the United Kingdom
like an AIROH with a central front door. It was a two-bedroom in-situ preform design with steel frame, asbestos clad walls and an innovative roof of
Prefabs_in_the_United_Kingdom
Type of optical fiber
to form a taper along the length of the fiber. By using pre-clad fiber preforms both the fiber core and the inner and outer cladding layers vary in diameter
Tapered_double-clad_fiber
specifically to burin use. Five specimens were recovered at this site. A preform is an incomplete and unused basic form of a stone tool. These specimens
Vail_Pass_Camp
Ancient class of verbs
linguists reconstruct a PIE pattern *(é)-(e)- ~ *(i)-(∅)- and propose that a preform *bʰé-bʰe/or-mi ~ *bʰi-bʰr̥-mé may have served as the source for Sanskrit
Proto-Indo-European reduplicated presents
Proto-Indo-European_reduplicated_presents
Scottish shipbuilding company
opening months of the invasion were based on a design of a Lobnitz Dredger preform. Faced with declining business the Renfrew yard finally closed in 1964
Lobnitz
Security feature on tops of bottles
Tamper resistance Chicago Tylenol murders Ottmar Brandau (2012). Bottles, Preforms and Closures: A Design Guide for PET Packaging. William Andrew. pp. 134–
Tamper-evident_band
integrate impression-die forging. One method incorporates casting a forging preform from liquid metal. The casting this then removed after it is cooled to
Rule-based DFM analysis for forging
Rule-based_DFM_analysis_for_forging
American basketball player, coach, and executive
Coach and Program Director for the Utah Jaxx of the NBA, - Managing & Preforming all clinics, camps, and outreach community programs from 1984-1986. During
Bob_Starr_(basketball)
Chemical compound
germanium tetrachloride, GeCl4, are introduced with oxygen into a hollow glass preform, which is carefully heated to allow for oxidation of the reagents to their
Germanium_tetrachloride
Polyatomic ion
Vladimir B. (2012-02-01). "Photoluminescence of sol-gel silica fiber preform doped with Bismuth-containing heterotrinuclear complex". Optical Materials
Bismuth_polycations
Parts of lagging strand in DNA replication
'tracking; model where the nuclease moves from the 5' flap to its base to preform cleavage. The Pol δ does not process a nuclease activity to cleave the
Okazaki_fragments
Algonquian dialects of Quebec, Canada
composition contains independent elements, like two existing word stems, or a preform and another word stem. For example, the noun mishtikunaapaau is made by
East_Cree
Method of casting in manufacturing
Subsequent sublimation of the ice within the SSZ yields a green ceramic preform with porosity in a nearly exact replica of these ice crystals. The microstructure
Freeze-casting
Portion of rock removed from an objective piece by percussion or pressure
primary reduction strategies (e.g., core reduction, roughing of blanks and preforms, and the like). More moderate and diffuse bulbs may indicate the use of
Lithic_flake
Company
Manufacturing of water treatment systems 2010 FlexWave heating system for preforms based on microwave technology for energy saving manufacturing of PET bottles
Krones
Dry stream channel in New Mexico, US
73, pp. 213–23, 1976 Boldurian, Anthony T., and Susanne M. Hubinsky, "PREFORMS IN FOLSOM LITHIC TECHNOLOGY: A VIEW FROM BLACKWATER DRAW, NEW MEXICO",
Blackwater_Draw
wire, monofilament and nets. A plastic blow molding machine inflates a preform or parison inside of a mold to form hollow parts. Thermoforming is a manufacturing
Plastic_forming_machine
Technique for smoothing and polishing a rough surface on relatively small parts
pellets and the addition of an oil-free non-abrasive soap. Sometimes, stone "preforms" are used. These are shapes cut from the rough rock before tumbling. This
Tumble_finishing
Ancient production techniques
begin to shape the stone. Using a hammerstone produces what is called a preform, which is the core of the tool in need of more detailed refinements. The
Lithic_technology
Town in Bavaria, Germany
(Vereinigte Papierwarenfabriken GmbH) Ernst Hähnlein Bau-GmbH Fa. Arcon GmbH Preform GmbH Weltron Elektronik GmbH Bohnacker GmbH Umformtechnik handik beauty
Feuchtwangen
Making materials of unlike substances without traditional curing
molding is the substitution of a prepreg layup rather than a dry fiber preform. SQRTM is an RTM process adapted to prepreg technology. The prepreg is
Out of autoclave composite manufacturing
Out_of_autoclave_composite_manufacturing
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