Sandpaper: kophawu nokusetshenziswa

Ngo ukukhuluma lokukhuhla evame ukubizwa ngokuthi "lokukhuhla" noma "isikhumba."

Siqukethe iphepha noma indwangu base camera nge ungqimba impahla athile.

On the ukukhiqizwa elihlobene ne ukucutshungulwa ipulangwe, ipulasitiki, insimbi, ingilazi ngeke akwenze ngaphandle nazhdachki. Kuyinto esisemqoka uma kususwa upende omdala, ayikho enye indlela ngaphandle uma kudingeka alungiselele ebusweni for primer kanye upende, njll

AmaShayina asendulo ekhulwini le-13 ngosizo lokwakha ingcina esekelwe isitashi wanamathela imbewu isikhumba isitshalo, isihlabathi fake kutsho neziqhumane.

I sibonelo iphepha sanding kuthathwa njengesibikezelo esiyiso "ingilazi iphepha" ngoba esetshenziselwa yokukhiqiza yayo ngomzuzu ingilazi izinhlayiya.

Ngo-1834, i-American unjiniyela A. Fischer Jr. lokuqala lobunikazi ukukhiqizwa kwe Emery indwangu, okusanhlamvu olwalwenza eye Karbid Kremniya futhi alumina.

You azi ukuthi lokukhuhla wokusanhlamvu enye izici zako ezisemqoka.

Evamile, iphepha zihlukaniswe ngamaqembu: indawo, aphakathi nendawo kanye esihle okusanhlamvu ephepheni.

usayizi Grain inquma uhlobo lomsebenzi ngoba okuyinto lokukhuhla. Labelling izosiza wakhe ukukhetha.

Emery babenza imisebenzi ephathelene nokwelashwa nesasehlobo ezishelelayo azo zonke izinhlobo putty.

Ukuze ezahlukene izinhlobo zomsebenzi esetshenziswa ukwehlukanisa phakathi wokusanhlamvu ngesisekelo lokukhuhla. Ukumaka at iphepha ethile.

Grit lokukhuhla

N - kophawu imikhiqizo yasekhaya (ubudala).

P - kophawu imikhiqizo amazwe kanye kophawu entsha imikhiqizo yasekhaya.

Abakhiqizi ezikhiqiza izimpahla kwamanye amazwe, zisebenzisa igama elibi yomhlaba eyodwa esezingeni usayizi okusanhlamvu.

Kwezinye zithi Union iwa lokukhuhla, kwaba ukuqala umkhiqizo osuphelile ukukhiqizwa Emery abazenzi ngokuvumelana GOST (ubudala).

Into efanayo okwenzeka e-Canada, China, US naseJapane, lapho emakethe yasekhaya uyawuthanda izimpawu lalo.

Standard European (GOST elisha) kusho nokwanda kokungabi amagugu nge nokuncipha usayizi okusanhlamvu. Ngokuphelele ezahlukene kula mazwe ephawulwe lokukhuhla.

Standard Ngokwesibonelo, yakhelwe ukuze amanani, kunalokho, kuyancipha njengoba lehla usayizi okusanhlamvu.

Lezi umehluko akunakugwenywa uma uthenga imikhiqizo olwalwenza endaweni ezweni elaliyiSoviet Union, njengoba Lo mehluko wenza kungaholela yokufuna izimpahla okungalungile.

Kufanele kuqashelwe ukuthi iphepha amazwe ngokuvamile iningi edayiswa imikhiqizo, futhi yasekhaya - zisongwe, bathengisa imitha yayo.

Uma iphepha isetshenziswa ekuphileni kwansuku zonke, akudingekile ukuba Ngikhumbula kumakwe. Kuyinto kudingekile kuphela ukwazi ukuthi kophawu esidala ngohlamvu H emva inombolo, futhi esisha P incwadi phambi inombolo.

Ohlangothini reverse of the iphepha, kunezinye namagama. Abakwazi uthole eminye imininingwane mayelana lokukhuhla: kusekelwe, ubuchwepheshe ukukhiqizwa, uhlobo ka olwalwenza impahla okusanhlamvu, hlobo ingcina, njll ...

Manje ngoba sewuyazi ukuthi lokho lokukhuhla. Ukumaka? Ngalo, wena, nabo, baqonda. It uhlala ukufisela bonke umsebenzi emnandi futhi ithele.