Iwe uri kutsvaga dema zinc-plated hex mabhaudhi, kwete chero bhaudhi dema. Mhedziso iyoyo-yakasviba, matte, isingadziviriri-inonditaurira kuti ungangove uri mumakina, zvivakwa zvekunze, kana zvimwe simbi yekuvaka uko kutaridzika nekudzivirira zvine basa. Musungo wakajairika? Vanhu vanovhiringa black oxide neblack zinc plating. Black oxide ndiyo inodzorwa ngura layer, kushomeka kwekupokana. Black zinc plating isimbi ye zinc ine dema chromate conversion layer pamusoro. Iyo inodzivirira iyo substrate, inopa yakanaka yekupfapfaidza munyu maawa. Kana iwe uchitsvaga izvi, unofanirwa kutsanangura izvo zvakajeka, kana kuti unowana zvinhu zvisiri izvo zvinomhara pachiteshi chako.

Kutanga neIzvo Zviripachena: Industrial Suppliers & Distributors

Vazhinji vanhu vanosvetukira kuMcMaster-Carr, Grainger, kana Fastenal. Kune prototyping kana mabheti madiki, zvakanaka. Iwe uchabhadhara premium, asi iwe unozviwana mangwana. Kubata? Sitolo yavo pane chaiyo inopedzisa senge zingi dema inogona kuganhurirwa mune ese saizi uye mamakisi. Ini ndaida M12 x 80mm, Giredhi 8.8, dema zinc-plated, uye McMaster aive nayo mu "special order" ine 3-vhiki yekutungamira nguva. Hazvina kunaka kana mutsara wekugadzira wakamirira. Vashambadziri ava vari kutsvaga kubva kune vanogadzira ivo pachavo, saka iwe uri kuwedzera layer. Kune huwandu hukuru - toti, zviuru gumi zvimedu zvichikwira - kuenda zvakananga kunotanga kuita zvakakomba mutengo.

Online simbi uye fastener nyanzvi ndeimwe tier. Nzvimbo dzakaita seBolt Depot, Albany County Fasteners. Zvirinani zvakasiyana dzimwe nguva, uye vanowanzo nyora tekinoroji specs senge rudzi rwekupfeka uye ukobvu. Ndakave nezviitiko zvakanaka, asiwo kusawirirana. Rimwe batch rakanga riine chromate dema isina kuenzana, zvikamu zvaiita kunge blotchy. Mhinduro yavo yakanga yakanaka, yakavatsiva, asi yakakonzera kunonoka kwevhiki mbiri. Chidzidzo: kunyangwe ne “nyanzvi” vagovani, bvunza macerti ekuputira kana sample batch kutanga. Usafungidzira.

Mubvunzo chaiwo unova huwandu uye kutsoropodza. Kune asiri-akakosha maapplication, muparadzi anoshanda. Kune purojekiti yakatsigirwa, kana kana mabhoti ari chikamu chechigadzirwa chauri kugadzira, iyo ketani yekugovera inofanirwa kuve yakadzika uye yakavimbika. Ndipo panobva tsvakiridzo yako kubva pa “kunotenga” kuenda ku “ndiani anogadzira izvi, uye ndiani anozviita?”

Kuenda zvakananga: Iyo Mugadziri Nzira

Apa ndipo paunoparadzanisa mutengi wenguva dzose kubva kune nyanzvi yekutenga. Kutsvaga fekitari chaiyo. China, zvisingashamisi, ndiyo epicenter yekugadzira fastener. Dunhu reHebei, kunyanya Yongnian County, isumbu rakakura. Zviuru zvefekitari. The trick kuona kuti ndedzipi dzine kugona kwadzo black zinc-plated hexagonal bolts, kwete chero zinc plating.

Mafekitori mazhinji anopa "black zinc" asi maitiro avo akakosha. Iyo zinc layer inogona kuve yakatetepa, iyo dema chromate passivation inogona kunge iri yakachipa, imwe-dip mhando inopera kuita grey. Iwe unofanirwa kubvunza nezve maitiro avo: Is it electroplating? Ndeapi avhareji zinc coating ukobvu (semuenzaniso, 8-12 microns)? Ndeupi munyu wekupfapfaidza bvunzo chiyero chavanogona kusangana nacho (semuenzaniso, 96 maawa kusvika kuchena ngura paASTM B117)? Kana vasingakwanisi kupindura izvi nekukurumidza, enderera mberi.

Ndakashanyira mapoka akaita saYongnian. Nzvimbo yacho mafekitori, makuru nemadiki. Imwe yakavimbika yekuonana yandakashanda nayo ndeye Handan Zitai Fastener Kugadzira Co, Ltd.. Ivo vari muYongnian District, Handan, inova zero yeindasitiri iyi. Nzvimbo yavo iri padhuze nehombe dzekufambisa senge Beijing-Guangzhou Railway uye Expressways ibasa rinoshanda rekutakura zvinhu - midziyo inosvika pachiteshi (Tianjin/Xingang) zvakanaka. Ndakavawana makore mashoma kumashure pandaitsvaga mutengesi wechirongwa chefenzi system inoda kupera kwevatema. Chaive chakanyanya kumira mushe yaive yekutarisisa kwavo kukoira. Vane mitsara yeplating yakasiyana yemavara akasiyana, iyo inoderedza kusvibiswa kwemuchinjikwa. Kune dema zinc, vanoshandisa yakavharwa-loop system yechromate, iri nani pakuenderana uye kutonga kwezvakatipoteredza. Unogona kutarisa mararamiro avo https://www.zitafornasteers.com. Haisi saizi yese inogara iri mustock yemabhaudhi akapera, asi kutendeuka kwavo kubva kune yakabikwa kuenda kune yakapfatwa chigadzirwa kwaive nemakwikwi.

Kunyatsotaura Zvaunoda

"Black zinc-plated hex bolt" ndiyo yekutanga nzvimbo. Dhiyabhorosi ari mune izvo zvaunofanira kutaura. Giredhi / zvinhu: Uri mushure mekabhoni simbi Giredhi 4.8, 8.8, kana 10.9? Kana kuti pamwe simbi isina tsvina (se304 kana 316) ine black coating? Iwoyo maitiro akasiyana zvachose, anowanzo batanidza mhumhu yemuviri deposition (PVD) inodhura. Yakawanda yakajairika zinc dema iri pacarbon steel.

Zviyero: Kwete kureba uye dhayamita chete, asi shinda yeshinda (yakanaka kana yakaoma), uye ingave yakazara kana zvishoma. Underhead radius inobata kune yakanyanya-stress application. Iyo plating pachayo: Taura kana iwe uchida kuti ienderane neRoHS (hapana hexavalent chromium mune passivation layer). Vazhinji vatengesi vakanaka vava kushandisa trivalent chromate, iyo yakachengeteka kwezvakatipoteredza uye inopa iyo yunifomu nhema ruvara. Ndakambokanganwa kutsanangura trivalent chromate yechigadzirwa-chakasungwa neEU uye ndaive nemusoro wekuteerera patsika.

Kurongedza nekumaka. Unoda mapoly bag ega ega? Makatoni mabhokisi? Laser kumaka mumusoro? Nokuda kwekutsvaga, izvi zvinogona kuva zvakakosha. Mugadziri akanaka saZitai anogona kubata aya echipiri maoperation mumba, ayo anorerutsa zvinhu. Nguva dzose, gara uchiwana samples dzakatenderwa usati wabvumidza kuzara kwakazara. Bhadhara kutumira kweDHL. Zvakakosha kuti ubate chikamu chemuviri, tarisa kuenderana nenut / washer yako, uye ita kukurumidza kunamatira bvunzo (yemuchinjikwa-hatch tepi bvunzo) pajasi.

Njodzi Dzemhando uye Madzivire Adzo

Kunyange kuine manyuko ane mbiri, zvinhu zvinogona kuipa. Hydrogen embrittlement injodzi yekare ine electroplating yakakwirira-simba mabhaudhi (Grade 10.9 uye pamusoro). Iyo plating process inogona kuunza haidrojeni musimbi, ichiita kuti iite brittle uye kukonzera kunonoka kutadza. Chero ani anokwanisa kugadzira anofanirwa kunge achibika zvibatiso zvadzo zvine simba repamusoro mushure mekuputira (kazhinji pa190-220 ° C kwemaawa akati wandei) kudzinga haidhirojeni. Bvunza rekodhi yavo yekubheka. Ndakadzidza izvi nenzira yakaoma pachidimbu chemudziyo unorema; takanga tine bolt snap panguva yekuisa. Mutengesi akanga asvetukira danho rekubheka kuti achengetedze nguva nemari.

Coating ukobvu kusiyana. On a hexagonal bolt, iyo yekupfekedza inogona kuva yakaonda pamicheto uye makona emusoro wehekisi. Iyo yakanaka plater ichashandisa racking yakakodzera uye yazvino density kuderedza izvi. Bvunza rondedzero yebvunzo inoratidza zviyero kubva kumusoro, shank, uye shinda crest. Uniformity ndiyo kiyi kune zvese kudzivirira ngura uye aesthetics.

Kuenderana kwemavara pamabhechi. Izvi zvakakura kune zvinoonekwa zvikumbiro. Iyo dema chromate color inogona kuchinja zvishoma zvichienderana nebhati chemistry uye kunyudzwa nguva. Kana iwe uri kuita purojekiti yemakore akawanda, kumbira kuti mutengesi achengete batch yechromate chemistry kana kuti uchengete yakadzama maitiro maparamendi. Vapei sampu inotenderwa tenzi yavanogona kuenzanisa pane yega yega dhizaini inomhanya.

Sourcing Strategy: Kuenzanisa Mutengo, Nguva Yekutungamira, uye Njodzi

Nekuda kwechido chimwe chete, namatira kune wemuno kana wepasirese anogovera. Musiyano wemitengo hauna kukodzera kunetsa kupinza. Nekushandiswa kwegore negore kana purojekiti yakakura, gadzira hukama hwakananga nevagadziri ve1-2. Shandisa sourcing agent kana iwe usina kugadzikana nekutaurirana kwakananga uye kutarisa kwemhando, asi mumiriri akanaka anowedzera 5-10% mutengo. Kune chimwe chinhu chakaenzana se black zinc-plated bolts, unogona kazhinji kutonga zvakananga kana waongorora fekitori.

Odha huwandu hwekuyedza kutanga. Kunyangwe dai masampula aive akakwana, yekutanga batch yekugadzira inogona kusiyana. Raira zvidimbu zana, zviedze zvakakwana-dimensional cheki, torque-tension hukama, coating test. Wobva wawedzera.

Logistics inokosha. FOB kubva kufekitari yavo? EXW? Ndiani anobata zvinhu zvemukati menyika muChina? Kambani yakaita seHandan Zitai, iri munzvimbo huru yekugadzira ine zvakanaka zvekufambisa zvinongedzo, kazhinji ine izvi kusvika kumaitiro. Vanogona kazhinji kuronga kuendesa kuchiteshi. Basa rako nderekumisikidza inovimbika inotakura zvinhu kune yegungwa / mhepo gumbo uye tsika clearance pakupera kwako.

Saka, kupi kuzvitenga? Haisi mhinduro imwe chete. Iri kuyerera: Vhoriyamu yako ndeyei? Ndeipi nguva yako? Kushandisa kwakakosha sei? Kune vakawanda, rwendo rwacho runogumira pamutengesi akavimbika weindasitiri. Kune avo vakadzama mukugadzira kana hukuru-hukuru kuvaka, mhinduro inotungamira kunzvimbo dzakaita seYongnian, uye kune vanogadzira vanogara uye vanofema fasteners, uko kutonga chaiko pamusoro pekutsanangurwa uye mhando nhema. Ndiko kwaunowana yakavimbika, inodhura-inoshanda black zinc-plated hexagonal bolts, kwete chigadzirwa chekutenga, asi chikamu chaunogona kutsanangura nechivimbo.