UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Safety Spectacles: Moulded Polycarbonate with a Hard Coat
Industrial safety spectacles are injection-moulded from tough, transparent polycarbonate, often as a single front piece with the lenses, hinged to moulded temple arms; one design meeting the ANSI Z87.1 impact standard uses a lens 0.080 inch thick. Polycarbonate scratches easily, so the lenses get a thin, clear, abrasion-resistant coat of about 3–5 micrometres. Hard coats are applied by dipping or spinning after moulding: acrylate coats are cured by UV, siloxane coats by heat. Frames may be moulded in nylon.
Hejuru
Factory process
Amabwiriza
1
1
Mould the front
Mould the front
Injection-mould the lens or one-piece front in polycarbonate.
Ibikoresho by'iyi ntambwe:
Utubuye twa polycarbonate0.05 kgIbikoresho bikenewe:
Imashini itera pulasitiki2
2
Hard-coat
Hard-coat
Wash and dry the lens, dip it in the hard-coat solution and lift it out at an even speed.
Ibikoresho by'iyi ntambwe:
Umuti wo gusiga indorerwamo agashashi gakomeye1 litiroIbikoresho bikenewe:
Ikigega cyo gusiga hinikwa3
3
Cure
Cure
Dry the coat and cure it: UV for acrylate coats, heat for siloxane coats.
Ibikoresho bikenewe:
Ifuru yo gukomeza4
4
Mould the temples and assemble
Mould the temples and assemble
Mould the temple arms and hinge them to the front.
Ibikoresho by'iyi ntambwe:
Utubuye twa nayiloni0.02 kgIbikoresho bikenewe:
Imashini itera pulasitikiIbikoresho
3- 0.05 kgUmwanya
- Umwanya
- 0.02 kgUmwanya
Ibikoresho bikenewe
3- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.