China 2019 New Style Hex Long Wood Skroef vervaardiger en verskaffer | Ruiye

2019 Nuwe Styl Hex Long Wood Skroef

Kort beskrywing:

Materiaal: koolstof staal Q195, Q235 / vlekvrye staal

Grootte: M6 M8 M10 M12 M16 ...

Lengte: 25mm-160mm ...

Oppervlak: gegalvaniseerde


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We're convinced that with joint endeavours, the business between us will bring us mutual benefits. We are able to guarantee you products high quality and competitive value for 2019 New Style Hex Long Wood Skroef , ons 'n leidende rol in die verskaffing van kliënte met 'n goeie gehalte goedere groot verskaffer en aggressiewe aanklagte speel.
We're convinced that with joint endeavours, the business between us will bring us mutual benefits. We are able to guarantee you products high quality and competitive value for Hex Hoof Wood Skroef ,Long Wood Skroef ,Wood Skroef, Customer satisfaction is our goal. We've been looking forward to cooperating with you and providing our best services to suit your needs. We warmly welcome you to contact us and you should feel free to contact us. Browse our online showroom to see what we can do for you personally. And then E-mail us your specifications or inquiries today.
skroef:

A skroef is 'n tipe van sluiting, in 'n paar maniere soortgelyk aan 'n bout, tipies van metaal gemaak, en wat gekenmerk word deur 'n heliese Ridge, bekend as 'n  manlike draad  (eksterne draad). Skroewe word gebruik om vas materiaal deur te grawe in en vaswig in 'n materiaal toe gedraai, terwyl die draad sny groewe in die vasgemaak materiaal wat kan help trek vasgemaak materiaal saam en verhoed trek uit. Daar is baie skroewe vir 'n verskeidenheid van materiale; diegene wat algemeen vasgemaak deur skroewe sluit hout, plaatmetaal, en plastiek.

A skroef sal gewoonlik 'n  kop  aan die een kant dat 'n spesiaal gevorm vorm wat dit moontlik maak om dit te verander, of bevat  gedryf , met 'n instrument. Algemene instrumente vir die bestuur van skroewe sluit skroewedraaiers en die sleutels. Die kop is gewoonlik groter as die liggaam van die skroef, wat die skroef uit om dieper gedryf as die lengte van die skroef en 'n voorsien hou  verband hou oppervlak

Hout skroef:

Vroeë hout skroewe is met die hand gemaak, met 'n reeks van lêers, beitels, en ander sny gereedskap, en hierdie kan maklik raakgesien deur te let op die onreëlmatige spasiëring en vorm van die drade, asook lêer punte oorblywende op die kop van die skroef en in die gebied tussen drade. Baie van hierdie skroewe het 'n stomp einde, heeltemal ontbreek die skerp tapse punt op byna al die moderne hout skroewe. Uiteindelik is draaibanke wat gebruik word om hout skroewe vervaardig, met die vroegste patent opgeneem in 1760 in Engeland. Gedurende die 1850's is swaging gereedskap ontwikkel om 'n meer eenvormige en konsekwente draad verskaf. Skroewe gemaak met hierdie instrumente het afgeronde dale met skerp en growwe drade. Sommige hout skroewe is gemaak met die sny sterf so vroeg as die laat 1700's (moontlik selfs voor 1678 toe die inhoud boek die eerste keer gepubliseer in dele).

Sodra skroef draai masjiene was wat algemeen gebruik word, is die meeste kommersieel beskikbare hout skroewe geproduseer met hierdie metode. Hierdie snit hout skroewe is amper sonder uitsondering tapse, en selfs wanneer die tapse skag is nie voor die hand liggend, kan hulle onderskei omdat die drade nie uit te brei verby die deursnee van die skag. Soos skroewe is die beste geïnstalleer ná boor 'n vlieënier gat met 'n tapse boor. Die meerderheid van die moderne hout skroewe, behalwe vir diegene wat van koper, is gevorm op draad rollende masjiene. Hierdie skroewe het 'n konstante deursnee, drade met 'n groter deursnee as die skag, en is sterker omdat die rollende proses die graan van die metaal nie sny.


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