Zothandizira Zisanu Zapamwamba Zopangira Ma Fastener Screws

1, Chakuda (buluu)

Zomangira zomwe ziyenera kuthiridwa ndi zakuda zidayikidwa mu thanki yamadzimadzi (145 ± 5 ℃) ya sodium hydroxide (NaOH) ndi sodium nitrite (NaNO2) oxidant heat and oxidation, pamwamba pa zomangira zitsulo zidapanga wosanjikiza wa maginito Fe3O4 (Fe3O4). ) filimu, makulidwe nthawi zambiri ndi 0.6 - 0.8μm wakuda kapena wakuda wabuluu. Miyezo yonse ya HG/20613-2009 ndi HG/T20634-2009 ya zomangira zomwe zimagwiritsidwa ntchito paziwiya zokakamiza zimafunikira kukonza buluu.

2, Phosphating

Phosphating ndi njira yopanga phosphate chemical kutembenuka filimu ndi mankhwala ndi electrochemical anachita. Filimu yotembenuza phosphate imatchedwa filimu ya phosphating. Cholinga cha phosphating ndikuteteza zitsulo zoyambira ndikuletsa zitsulo kuti zisawonongeke pamlingo wina. Amagwiritsidwa ntchito ngati choyambira asanapente kuti apititse patsogolo kumamatira ndi kukana kwa dzimbiri kwa filimu ya utoto; Itha kugwiritsidwa ntchito pochepetsa mikangano ndi kudzoza muzitsulo zozizira zogwira ntchito. Muyezo wa mainchesi akulu awiri - zipilala zamutu wazotengera zokakamiza zimafunikira phosphating.

3, Kutentha kwa dip galvanizing

Kuviika kwa zinki otentha ndikumiza membala wachitsulo pambuyo pochotsa dzimbiri mu njira ya zinki yosungunuka pa kutentha kwakukulu pafupifupi 600 ℃, kotero kuti pamwamba pa membala wachitsulo amamangiriridwa ndi nthaka wosanjikiza. Makulidwe a nthaka wosanjikiza sadzakhala zosakwana 65μm mbale woonda zosakwana 5mm, ndi osachepera 86μm kwa mbale wandiweyani 5mm ndi pamwamba. Choncho kusewera cholinga kupewa dzimbiri.

4. Dacroll

DACROMET ndikumasulira ndi chidule cha DACROMET, DACROMET, DACROMET rust, Dicron. Ndi anticorrosive zokutira zatsopano ndi zinki ufa, aluminiyamu ufa, chromic acid ndi madzi deionized monga zigawo zikuluzikulu. Palibe vuto la hydrogen embrittlement, komanso kusasinthika kwa torque-preload ndikwabwino kwambiri. Ngati chitetezo cha chilengedwe cha hexavalent chromium sichikuganiziridwa, ndiye kuti ndichoyenera kwambiri zomangira zamphamvu zokhala ndi zofunika kwambiri za anticorrosion.

5, Magetsi galvanizing

Electrogalvanizing, wotchedwanso ozizira galvanizing mu makampani, ndi ndondomeko ntchito electrolysis kupanga yunifolomu, wandiweyani ndi bwino pamodzi zitsulo kapena aloyi mafunsidwe wosanjikiza pamwamba pa workpiece. Poyerekeza ndi zitsulo zina, nthaka ndi yotsika mtengo komanso yosavuta kuvala chitsulo, electroplating yamtengo wapatali ya corrosion resistance resistance, imagwiritsidwa ntchito kwambiri kuteteza mbali zachitsulo, makamaka motsutsana ndi mlengalenga, ndipo zimagwiritsidwa ntchito pokongoletsa. Njira zopangira plating zikuphatikizapo plating plating (kapena hang plating), roll plating (yoyenera tizigawo tating'ono), plating ya buluu, plating yokha ndi plating mosalekeza (yoyenera waya, mizere).

Electrogalvanizing ndiyo zokutira zomwe zimagwiritsidwa ntchito kwambiri pazomangira zamalonda. Ndizotsika mtengo komanso zowoneka bwino, ndipo zimatha kubwera zakuda kapena zobiriwira zankhondo. Komabe, ntchito yake ya anticorrosion ndiyokhazikika, magwiridwe ake a anticorrosion ndi otsika kwambiri muzitsulo za zinc plating (zophimba). General electrogalvanizing kusalowerera ndale mchere kutsitsi mayeso mkati maola 72, palinso ntchito sealant wapadera, kupanga ndale mchere kutsitsi mayeso kuposa maola 200, koma mtengo ndi okwera mtengo, ndi 5 ~ 8 nthawi galvanizing wamba.

Zomangira zamagulu omangika nthawi zambiri zimakhala zamitundu ya zinki ndi zinki zoyera, monga ma bolt 8.8 amalonda.

6, Chrome yodzaza

Chrome plating makamaka kusintha pamwamba kuuma, kukongola, kupewa dzimbiri. Chromium plating imakhala ndi kukhazikika kwamankhwala abwino ndipo sichimakhudzidwa ndi alkali, sulfide, nitric acid ndi ma organic acid ambiri, koma imasungunuka mu hydrohalic acid (monga hydrochloric acid) ndi hot sulfuric acid. Chromium ndi yabwino kuposa siliva ndi faifi tambala chifukwa sisintha mtundu ndipo imasunga mawonekedwe ake kwa nthawi yayitali ikagwiritsidwa ntchito.

7, Nickel plating

Nickel plating makamaka kuvala zosagwira, odana ndi dzimbiri, odana ndi dzimbiri, zambiri woonda makulidwe a ndondomeko anawagawa electroplating ndi mankhwala magulu awiri.

8, kulowetsedwa kwa zinc

Mfundo yaukadaulo wa zincizing ya ufa ndikuyika zida za zincizing ndi chitsulo ndi zitsulo mu ng'anjo ya zincizing ndi kutentha pafupifupi 400 ℃, ndipo maatomu a zinki yogwira adzalowa muzitsulo ndi zitsulo kuchokera kunja kupita mkati. Panthawi imodzimodziyo, maatomu achitsulo amafalikira kuchokera mkati, omwe amapanga zinc-iron intermetallic compound, kapena zokutira za zinki, pamwamba pa zitsulo.