Samvinna
LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Emery Cloth: Graded Grit Between a Make Coat and a Size Coat
Emery cloth is a coated abrasive: grains of emery, a natural abrasive used for polishing metal, glued to one face of a cloth backing. Cloth is chosen over paper where durability matters. The grit is graded to one size, glued down with a make coat, and locked in with a second size coat. Hide glue is the traditional adhesive; it does not stand the heat of machine sanding and is not waterproof, so resin is used where that matters. Closed-coat cloth has 90–95% of its face covered with grain, open-coat 50–70%, which clogs less on soft materials.
Miðlungs
Factory process
Leiðbeiningar
1
1
Crush and grade the grit
Crush and grade the grit
Crush the emery, then sort it to one size: pass coarse grit through successively finer sieves, separate medium grit by air classification, and the finest by water classification, letting particles settle in a tank by how fast they sink.
Efni fyrir þetta skref:
Smergilberg1 as requiredNauðsynleg verkfæri:
Grjótmulningsvél
Sigtasett (stigskipt möskvastærð)
Loftflokkari
Botnfellingartankur2
2
Make coat
Make coat
Run the long ribbon of cloth backing through the coating line and coat one face with adhesive, the make coat that will bind the grit to the cloth.
Efni fyrir þetta skref:
Bómullardúkur1 as required
Skinnlím1 as requiredNauðsynleg verkfæri:
Slípiefnahúðunarlína3
3
Coat with grit
Coat with grit
Drop the graded grit on to the wet make coat (gravity coating), or pass backing and grit through an electric field so the charged grit is drawn on to the backing (electrostatic coating), which holds it more strongly. Cover 90–95% of the surface for closed coat or 50–70% for open coat.
Nauðsynleg verkfæri:
Slípiefnahúðunarlína4
4
Size coat
Size coat
Apply a second layer of adhesive, the size coat, over the grit to fix it in place.
Efni fyrir þetta skref:
Skinnlím1 as requiredNauðsynleg verkfæri:
SlípiefnahúðunarlínaEfni
3- 1 as requiredStaðgengill
- 1 as requiredStaðgengill
- 1 as requiredStaðgengill
Nauðsynleg verkfæri
5- Staðgengill
- Staðgengill
- Staðgengill
- Staðgengill
- Staðgengill
Þessi teikning býr til
Tengd Blueprint
Þessi blueprint deila þekkingu — tækni, efni eða meginreglur
CC0 opinbert ríki
Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.
Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.