UWood wemvelo kanye nensimbi kube nezinto ezibalulekile zokwakha abantu izinkulungwane zeminyaka. Ama-polymers okwenziwe esiwabiza amapulasitiki asanda kwasungulwa ngekhulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 aqhume kuleli khulu lama-20 eliqhume ngekhulu lama-20.
Zombili lezi zinsimbi namapulasitiki zinezakhiwo ezilungele ukusetshenziswa kwezimboni nezentengiselwano.Metals ziqinile, ziqinile, futhi zidinga ukuthi zibe yimikhiqizo yensimbi futhi zidinga kakhulu ukukhiqiza. Amapulasitiki ashibhile enza izinto ezihlelekile ezakhayo: izinto zepulasitiki aziyona into enhle, futhi akekho ofuna ukuhlala endlini yepulasitiki.adlano, zivame ukucwengekiswa kusuka kumafutha emifino.
Kwezinye izinhlelo zokusebenza, izinkuni zemvelo zingancintisana nezinsimbi namapulasitiki.Izinkuni zomndeni wonke zakhiwa ku-Wood Framing.Izinkuni zemvelo zikhishwe ngokudalwa kwamanzi futhi zizolinyazwa kalula ngokhuni lwezinkuni?
Isakhiwo se-fibrous sokhuni siqukethe cishe ama-cellulose angama-50%, i-polymer yemvelo enezindawo ezinhle zezinkuni zezinkuni ikakhulukazi zinikeza izinkuni ezibunjiwe futhi ngenxa yalokho zingenawo amandla abumbanayo futhi ngenxa yalokho anikezela lutho ngamandla ezinkuni. Yenza imisebenzi ewusizo yokhuni oluphilayo.kodwa ukuze abantu bahlangane ngama-Wood futhi babopha imicu yayo ye-cellulose ndawonye, i-lignin yaba yisithiyo.
Kulolu cwaningo, izinkuni zemvelo zenziwa ngokhuni oluqinile (HW) ngezinyathelo ezine.First, izinkuni zibilisiwe ku-sodium hydroxide kanye ne-sodium.Ukunciphisa lokhulima kwezemvelo, kunciphisa izikhala zemvelo noma zikhulisa ukubopha amakhemikhali phakathi kwe-cellulose eseduze I-Fibers.Next, izinkuni zicindezelwa ngo-105 ° C (221 ° F) amahora amaningi ambalwa ukuqedela ukucaciswa, bese yomiswa.
Impahla eyodwa yemishini yezinto ezihlelekile yi-Indentation Hardness, okuyisilinganiso sekhono layo lokumelana nodoti lapho i-Force.Diamong izivivinyo eziningi zobunjiniyela ezisetshenziselwa ukubonwa nge-gemology, i-Brinell test is nye yazo. icindezelwe endaweni yokuhlola nge-force elithile.kuphambana ububanzi be-induction eyindilinga eyenziwe yibhola.Inani le-Brinell Hardness inani libalwa kusetshenziswa ifomula yezibalo; Ekhuluma ngokukhululeka, kukhudlwana umgodi ibhola hits, okuthambile.
Izinkuni zemvelo ezingalashwa zizodonsa amanzi.Lokhu zingandise izinkuni bese zigcina zibhubhise izimbiwa zezinsuku ezimbili ukuze zikhulise ukumelana kwamanzi ("ngokwesaba ama-hydrophobic. ("Ngakolunye uhlangothi, (ngakolunye uhlangothi, kusakaza amaconsi amaconsi (futhi ngemuva kwalokho amunca amanzi kalula)
Kwezinye izivivinyo zobunjiniyela, imimese ye-HW yenziwa kangcono kancane kunemimese yensimbi. I-steak efanayo nehlangothi oluthutha lwe-fork yensimbi, nommese we-steak kuzosebenza kangcono kakhulu.
Kuthiwani Ngezipikili? I-HW NAIL ELUNGCINA NGEMPELA KAKHULU KAKHULU KAKHULU KWAMABHODI AMABHODI AMABILI, NGAPHEZU KWAMABHODI ABANGANI NGOKUGCINWA KWAMAHHALA, ngakho-ke izipikili ezinamandla zazingeze zahluleka kuvezwe.
Ingabe izinzipho ze-HW zingcono ngezinye izindlela? Ama-Pegs Okhuni alula, kepha isisindo sesakhiwo asiqhutshwa ngokuyinhloko yisisindo sezikhonkwane esikubamba ndawonye.I-Pegs ngeke zigqwala.
Akungatshazwa ukuthi umlobi usungule inqubo yokwenza izinkuni ziqine kunezinkuni zemvelo.
Isikhathi sePosi: APR-13-2022
