The document discusses various set construction techniques including temporary techniques like tapping, threading, nuts, bolts and washers, and screws, as well as permanent techniques like nails, wood joints, brazing, welding and rivets. It also discusses different types of adhesives like PVA, acrylic cement, epoxy resin, contact adhesive and spray mount. For each technique, it provides a description, examples of use, advantages and disadvantages, and comparisons with alternative methods. Key techniques highlighted include welding, screws, contact adhesive, mortise and tenon joints, and spray mount.
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This guide is designed to help engineers overcome the
reservations they may sometimes have about adhesives. It
includes a survey of modern adhesives and shows how joints
should be designed and pretreated in order to make the best
use of adhesive bonding. This guide has roots going back to
the days when adhesives capable of bonding metals were
first invented: our Araldite
adhesive trade name is known
and recognised worldwide in both the industry and in the
home.
®
The question about what is one trying to accomplish when
using an adhesive is not new. Man has used adhesives
or glues since the dawn of history. The ancient Egyptians
attached veneers to furniture with glue. These early glues
were all natural substances. Nowadays synthetic resins and
polymers are being used.
When components are bonded together, the adhesive first
thoroughly wets the surfaces to be bonded together filling
the gap in between and then starts to polymerize. When
hardening is complete, the bond can withstand the stresses
of use. High performance adhesives harden through chemical
reaction and have a strong affinity to joint surfaces. Adhesive
bonding is sometimes called chemical joining to differentiate it
from mechanical joining.
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center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
PERSPEX Clearview is a family of PERSPEX sheet grades especially developed to meet the performance requirements of acoustic barriers. Get more details @http://www.grammbarriers.com
+44 161 494 1345 | info@antala.co.uk
www.antala.co.uk
This guide is designed to help engineers overcome the
reservations they may sometimes have about adhesives. It
includes a survey of modern adhesives and shows how joints
should be designed and pretreated in order to make the best
use of adhesive bonding. This guide has roots going back to
the days when adhesives capable of bonding metals were
first invented: our Araldite
adhesive trade name is known
and recognised worldwide in both the industry and in the
home.
®
The question about what is one trying to accomplish when
using an adhesive is not new. Man has used adhesives
or glues since the dawn of history. The ancient Egyptians
attached veneers to furniture with glue. These early glues
were all natural substances. Nowadays synthetic resins and
polymers are being used.
When components are bonded together, the adhesive first
thoroughly wets the surfaces to be bonded together filling
the gap in between and then starts to polymerize. When
hardening is complete, the bond can withstand the stresses
of use. High performance adhesives harden through chemical
reaction and have a strong affinity to joint surfaces. Adhesive
bonding is sometimes called chemical joining to differentiate it
from mechanical joining.
Organizing an Effective Maintenance Program for Plasticating ComponentsGlycon Corp.
Glycon Corp. is an innovator in the design and manufacturing of feed screws, barrels, non-return valves and other melt stream solutions for injection molding, extrusion and blowmolding. http://www.glycon.com/
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
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Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
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Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Acetabularia Information For Class 9 .docxvaibhavrinwa19
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
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Digital Tools and AI for Teaching Learning and Research
Set construction techniques
1. RESEARCH TASK3 - SET CONSTRUCTION TECHNIQUES(page 64-73 intextbooks)
Temporary;tappingandthreading/nuts,boltsand washers/screws/ knockdownfittings/brackets/ stapling
Permanent;nails/woodjoints –halving,butt,rebate,housing,mortiseandtenon,dowel,brazing,welding,rivets
Adhesives;PVA /acryliccement/epoxyresin/contactadhesive /spraymount
Setconstruction technique photograph/ diagram of technique Descriptionof construction
technique includingsituationor
material suitability
Examplesonwhere technique might
be usedinthe constructionof sets
Advantagesanddisadvantagesof
the technique
Comparisonof performance
againsta possible alternative
methodof fixing
Welding(Image fromQuora) A processthat joinsmaterials
(mainlymetals)throughfusingata
hightemperature thatcauses
melting.Thismeltedmaterialcools
and formsa strong joint.
Weldinganymetal props
together(ora stair railingfor
particularscenes)
Requiresprotective
equipmenttoavoiddamage
due to heat/flames
Bondsare very strong,very
hard to break
Costly
Nuts&BoltsVSWelds
Bondswithfasteners
have beenfoundtobe
more consistentand
strong
Nuts,Boltsand Washers
can be replacedmuch
easierthanweldedparts
Screws(Image from
DLSWeb)
A type of fastener,made of metal.
Usedto holdobjectstogether. Can
be threadedintovariousmaterials,
mainlywood.
Can be usedfor putting
togethermaterialstocreate
props
Differenttypesof screwsfor
differentrequirements
Some typesof screware
waterproof
Small,easytohide/cover
BoltVS Screw:
Boltsrequire anut,
screwsthreaddirectly
intothe material withno
nut needed
Contact Adhesive(Image
fromTechnologyStudent)
A rubberyadhesive thatcanbe used
to glue togethermaterialsother
adhesivescannot. Worksbeston
plastics,rubber,glass,metal and
leather.
??? Can be usedfor large
surfaces
Driesfasterthanmost other
adhesives(stilldoestake 15-
20 minutestoair dry)
Notgood withwood
Contact AdhesiveVSSprayMount
Contact Adhesiveis
betterforlargersurfaces
than SprayMount
Spray Mounttakeslonger
to dry,but allowsfor
repositioning
Mortise and Tenon (Image
fromTechnologyStudent)
A type of jointthat connectstwo
piecesof material,mainlywood.A
Tenoniscut to fit the mortise hole,
allowingittoslide inandfit.May be
gluedtokeepitin place.
Can be usedto put together
any bigwoodenprops
(Maurice’sinvention)
Can be used to make any
woodendoorsor doorframes
for certainscenestolook
better(more aesthetically
pleasing)
Easy to put together
Oftenrequiressomethingto
keepitinplace (stopsit
comingloose)
Needstohave precise
measurementsotherwise it
can splitor break
Tenonand Mortise
Spray Mount(Image from
Staples)
Usedfor mountingphotographs,
printsand artwork. A sprayon
adhesive thatallowsfor
repositioningforupto12 hours
afterbeingappliedtoone surface,
or 2 if appliedtobothsurfaces.
Can be usedfor mounting
theatre sets
Can be usedto attach any
extraobjectstoprops (cogs
to Maurice’sinvention for
example)
Transparentand non-
staining
Secure hold,doesn’tweaken
easily.
Takestime to dry,allowing
for positioning/repositioning
before itbonds
Irritant
Veryflammable
Aerosol;Notgoodforpeople
withasthma
Spray MountVS PVA
Spray Mountcan come in
permanentortemporary
forms
PVA can’t coverlarge
areas quicklylike Spray
Mount can
PVA Isall-purpose,has
more usesthan Spray
Mount
2. RESEARCH TASK3 - SET CONSTRUCTION TECHNIQUES(page 64-73 intextbooks)
Temporary;tappingandthreading/nuts,boltsand washers/screws/ knockdownfittings/brackets/ stapling
Permanent;nails/woodjoints –halving,butt,rebate,housing,mortiseandtenon,dowel,brazing,welding,rivets
Adhesives;PVA /acryliccement/epoxyresin/contactadhesive /spraymount
Nuts,Boltsand Washers
(Image fromTool Station)
Nuts:A small fastenerusedwitha
boltto joinmaterialstogether.
Bolts:A threadedfastener,likea
screw.Requiresanutto stay in
place.
Washers:A thinmetal plate witha
hole that’susedtodistribute the
loadof a threaded fastenerlike a
boltor a screw,sothe surface isn’t
damaged.
Puttingtogethermaterialsto
create props (
Easy to disassemble
Anyone canuse a wrenchto
put a boltintoplace
Durable/Longlasting
Corrosioncan occur
See WeldingorScrewsfor
comparison.
HalvingJoints (Image from
Basic CarpentryTechniques)
A jointwhichinvolvestwopiecesof
workbeingjoinedbyaremoved
area on an edge,allowingthemto
overlapandconnect.
Frame construction
(doorframesperhaps?)
Tablesmaybe (unlessthose
are rentedorbought)
Halvingjoints canbe quite
weakif they’re simple.The
more elaborate the jointis,
the strongerit will be.
AcrylicCement(Image from
TAP Plastics)
A solvent-like bondingadhesive used
to bondtogetheracrylicpieces.Can
alsobe usedforedge gluing.
??? Softenssurfacesandallows
themto sticktogether
Jointsare strong andalso
clear,so itdoesn’tlooktoo
messy
???
