TL;DR —Vagadziri vemagetsi vekuJapan vanotenga zvidimbu zvesimbi zvisina kuvharwa zvakaputirwa kubva kuChina zve spring clip uye connector terminal stamping vanosimbisa macheki mashanu ane mativi uye metallurgical anopfuura ASTM A240 kana JIS G 4305 standard minimums. Kurambwa kwakajairika kwandinoona kubva kumapoka eJapan QA padanho rekuongorora riri kuuya kusimba kwaro - 1/4H strip yakatarwa paHV 250–310 haifanirwe kunge yakapararira kupfuura ±15 HV muhurefu hwe coil (standard HV 60 spread inoonekwa seyakafara zvakanyanya kune terminal contact spring inoda preload force repeating ye ±5%). Surface roughness inofanira kunge iri pasi peRa 0.5 μm padivi re contact strip, uye thicken tolerance inofanira kubatwa kusvika ±0.03 mm ye 0.3 mm nominal gauge - shanduko ye 0.05 mm mu strip thickness inoburitsa musiyano we 0.3 mm mu free height ye spring clip yakagadzirwa, iyo inoshandura contact pressure ne 1.2–1.5 N kubva pamutengo wakatarwa. Chinyorwa chino chinotaura nezvematanho mashanu ekuongorora akakosha kana kambani yemagetsi yekuJapan ikaita odha yekudzokorora yesimbi isina ngura inomonereka inotonhora.

Indasitiri yekugadzira zvinhu zvekubatanidza nekugadzira zvinhu zvemagetsi muJapan — makambani akadai seJAE (Japan Aviation Electronics), Hirose Electric, neYazaki’s electronics division — anoshandisa zviuru zvematani esimbi isina ngura inotonhorera inotonhorera pagore yezvikamu zvakadhindwa: ma spring clips anochengetedza hafu yekubatanidza (kazhinji 0.2–0.4 mm ukobvu, 1/2H tender, 301 kana 304 grade), uye ma signal kana power terminals 0.15–0.30 mm ukobvu mu 1/4H tender. Chidimbu ichi chinopinda mu stamping press pa 50–200 m/min, chichigadzira 50,000–200,000 terminals paawa kuburikidza ne progressive die ine zvinodiwa zvekushivirira zvinoyerwa muma micrometers. Chidimbu chinokundikana kuongororwa kufekitori yemagetsi muJapan chinodzoserwa kumutengesi nemutengo wemutengesi, pamwe ne claim ye downtime line ye ¥200,000–¥500,000 paawa ye idle stamping press. Tinopa simbi isina ngura inotonhorera inotonhorera kumusika uyu, uye chinyorwa chino chinotaura nezvekuongorora kushanu kunoitwa neinjiniya weQA wekuJapan pane coil yega yega inouya. Kuti uwane mhando yedu yekugadzira cold rolling, ona peji rekuti "cold rolling".peji rechigadzirwa chesimbi isina ngura inotonhoreraKuti uwane kugona kwekuita mukugadzira zvidimbu zvakanyatsonaka, shanyira iyochikamu chesimbi isina ngura chakanyatsogadzirwa.

Kusimba Kwakafanana — Nei ±15 HV Ichifanira Kukosha paChitubu Chekubatana

Vagadziri vemagetsi vekuJapan vanotsanangura tembiricha yesimbi isina kuvharwa inotonhorera zvichienderana nematanho maviri anoshanda pamwe chete: JIS G 4313 (mitsetse yesimbi isina kuvharwa inotonhorera inotonhorera yezvitubu) uye ASTM A240/A480 specification ye tembiricha yakaenzana. Kune 1/4H strip mu304 stainless steel, huwandu hwekuomarara paJIS G 4313 iHV 250–310 (kupararira kwemapoinzi makumi matanhatu). Kune 1/2H strip mu301 stainless steel, huwandu hwacho iHV 310–370 (zvakare mapoinzi makumi matanhatu). Standard yacho iHV 310–370 (zvakare mapoinzi makumi matanhatu). Standard yacho iHVkuomarara kwekugadzirwa kwemuchina— inovhara kushanduka kwakajairika kwekushisa kwechoto che annealing (±10°C pahupamhi hwestrip muchoto che annealing chinoenderera mberi) uye kushanduka kwekudzikisa kwe cold-rolling (±2% mukupedzisira paSendzimir mill). Asi kune mugadziri we terminal wekuJapan, kupararira kwe hardness ye 60-point kwakafara zvakanyanya kune terminal inofanira kupa simba rekubata rakaenzana pa 500,000 stampings.

Simba rekubata respring clip terminal rinoenderana nesimba remuchina wekucheka pa radius yakakombama yakagadzirwa. Kune 0.3 mm ukobvu 1/2H 301 stainless steel clip yakakombama pa 0.3 mm mukati me radius (chiyero cheR/t = 1.0 - kukotama kwakasimba kwekubata spring), angle yekucheka inoshanduka ne 0.5° pakuwedzera kwega kwega kwe 10 HV mu strip hardness. Kusiyana kwe 60 HV pa coil zvinoreva kuti angle yekucheka inoshanduka ne 3° - kureba kwe strip isina kuumbwa kunoshanduka ne 0.2 mm pamucheto wekubata, uye simba rekubatana rinoshanduka kubva pa 8 N yakatarwa kuenda pakati pe 6.5 N ne 9.5 N. Mutengi wekuJapan anoramba chero batch apo kuoma kunosiyana ne ±15 HV pa coil (hwindo re 30-point). Tinosangana nezvinodiwa izvi nekushandisa rolling mill pa controlled reduction per pass uye sampling hardness panzvimbo shanu (kuruboshwe, kuruboshwe, pakati, kurudyi, kurudyi) pa coil yega yega mu batch, tichinyora kutsauka kwakajairwa. Kana kutsauka kwakajairwa kuchidarika 8 HV, coil inodzikiswa kuita application isina kunyatsojeka. Mhando yezvigadzirwa zve cold-rolled strip inoratidzwa papeji remutsara rakamonerwa nechando.

Kuoma Kwepamusoro — Ra 0.5 μm yeKuramba Kubatana

Kuomarara kwepamusoro pemutsara unotonhora uri parutivi rwemutsara wekubatanidza kunosarudza nzvimbo chaiyo yekubatana pakati pemutsetse nepini yekusangana. Mutsetse unotakura 3 A yemagetsi echiratidzo ane resistance ye20 mΩ unoda nzvimbo chaiyo yekubatana yeinenge 0.01 mm² pasimba rekubatana (8 N). Kana kuomarara kwemutsetse uri Ra 1.0 μm pachinzvimbo cheRa 0.5 μm, asperities (peaks) pamusoro pemutsetse dzakareba ne0.5 μm - kushanduka kwepurasitiki kweasperities aya pasi pesimba rekubatana kunogadzira nzvimbo chaiyo yekubatana iri diki ne30–40%, zvichisundira resistance yekubatana kubva pa20 mΩ kusvika pa30–35 mΩ. Pa3 A, kupararira kwesimba panzvimbo yekubatana (I²R = 9 × 0.035 = 0.315 W) muimba yekubatanidza yakavharirwa isina mhepo inokonzera kukwira kwekushisa kwenzvimbo kwe15–25°C pamusoro pemhepo. Mubhandi remota rine injini ine maconnector makumi matanhatu (60-connector), kupisa kwacho kunoderedza kupisa kwechirimo kweterminal — 1/2H stainless steel stress-inozorora ne10–15% pa100°C mumaawa 3,000, zvichideredza simba rekubata uye zvichiwedzera kuramba kubata muchikamu chekukundikana chinozvisimbisa.

Kuomarara kwenzvimbo yestrip kunoenderana nezvinhu zvina: kupera kwenzvimbo ye work roll (ground finish Ra 0.1 μm ye final pass), kuchena kwe rolling oil (5 μm filter system inodzivirira hard particles kuti isapinde mu strip surface), strip tension panguva ye final pass (inochengetwa mukati me ±3% ye setpoint ne closed-loop torque control ye tension reel), uye annealing furnace atmosphere (hydrogen-nitrogen reducing atmosphere pa 1,050°C ye 304 ne 301 grades inodzivirira carbide precipitation uye surface oxidation). Tinoyera roughness ye surface panzvimbo nhatu mu strip width pa coil yega yega tichishandisa contact profilometer pa ISO 25178. Ra yakajairika i 0.35–0.45 μm padivi rakajeka uye 0.45–0.55 μm padivi rakasviba - mutengi anosarudza divi re contact surface. Kuti uwane hard precision strip production, onapeji rechigadzirwa chesimbi isina ngura yakasimba.

Kushivirira Ukobvu — ±0.03 mm Inodzora Kureba Kwakasununguka kweKlip Yakakotama

Kukwanisa kushivirira ukobvu mumutsara wakanyatsogadzirwa nechando kwakarongwa paASTM A480 se ±10% yegeji yemhando yepamusoro yehupamhi hunosvika 600 mm. Kune ukobvu hwemhando yepamusoro hwe 0.30 mm, iyi i ±0.030 mm. Vagadziri vemagetsi vekuJapan vanosimbisawo kushivirira uku, asi vanoyerawo kusiyana kweukobvu muhupamhi hwemutsara (profile yekorona) uye pamwe chete nehurefu hwemutsara (kusiyana kwebhendi regeji). Korona — musiyano weukobvu pakati pepakati pemutsara nemupendero wemutsara — haufanirwe kudarika 0.010 mm kune strip yakafara 200 mm pageji yemhando yepamusoro ye 0.30 mm. Kusiyana kwebhendi regeji — kusiyana kweukobvu hwenguva nenguva muhurefu hunokonzerwa nekusiyana kwemabearings eSendzimir mill — haufanirwe kudarika 0.005 mm muhurefu hwemamita gumi.

Sei paine mwero wakadai wekunyatsojeka kwechikamu chechitubu? Chikamu chechitubu chakatsikwa chakakotama pa 0.5 mm radius ine ukobvu hwe 0.30 mm (R/t = 1.67) chine urefu hwakasununguka hwe 4.5 mm. Kana ukobvu hwechikamu huri 0.33 mm (muganho wepamusoro we ±0.03 mm), chimiro che springback chinoshanduka nekuti nguva yekusagadzikana kwechikamu chemuchinjikwa (I = b × t³ / 12) inowedzera ne (0.33/0.30)³ = 1.33 times - chitubu chakagadzirwa chakasimba ne 33% pakukotama, uye kukwirira kwakasununguka kwechikamu kunowedzera ne 0.3 mm kusvika 4.8 mm. Simba rekuisa pini rinochinja kubva pa 8 ± 1 N kusvika 10 ± 1.5 N - pamusoro pemuganho wepamusoro wemutengi we 9 N. Mhedzisiro imwechete mu reverse inoitika kana ukobvu huri pamuganho wepasi we 0.27 mm. Kushivirira ukobvu hwe ±0.03 mm kunoshandura zvakananga ku ±0.25 N force variation mu spring clip — uye hwindo rekugamuchira kwemutengi i ±1 N. Tinobatidza ukobvu kusvika ±0.02 mm pakati pe coil uye ±0.03 mm kumicheto kuburikidza ne closed-loop automatic gauge control pane final Sendzimir mill pass. Kuti uwane zvigadzirwa zve stainless steel strip zvakafara, onapeji rechikamu chesimbi isina ngura.

Edge Burr — Punch-and-Die Lifetime Interface

Mutsetse wakamonerwa nechando unochekwa kubva pa coil yakazara kuita mitsetse yakatetepa (20-200 mm yakafara, zvichienderana nehupamhi hwe terminal uye stamping die layout) pamutsetse wekuchekwa une mapanga anotenderera. Maitiro ekuchekwa anogadzira burr pamucheto wekucheka - muromo wakasimudzwa wezvinhu zvakabviswa unobuda pamusoro pe strip ne 0.02-0.15 mm zvichienderana nekupinza kwebanga, nzvimbo yekuchekwa (mukana uri pakati pemapanga epamusoro neapasi, wakaiswa pa 5-10% yeukobvu hwe strip kuti uchekwe nemazvo), uye kusimba kwe strip pa slitting recoiler. Kune terminal stamping die yeJapan inomhanya pa 200 strokes paminiti ine clearance ye punch-to-die ye 0.020 mm (7% ye 0.30 mm strip thickness), burr pamucheto we strip unouya ndicho chinhu chekutanga chinobata pamusoro pe die. Kureba kweburr pamusoro pe0.05 mm kuchakuvadza pamusoro pechivharo mukati me50,000 strokes - galling inogadzira kukwenya pavhu rechivharo rinoenda kune rimwe nerimwe terminal rinotevera, zvichigadzira ridge rakasimudzwa pamusoro pechivharo rinodzivirira terminal kuti isagare zvizere mu connector housing.

Tinodzora kukwirira kweburr remucheto kuburikidza nematanho matatu ekutsvedza: kupindirana kwebanga kwakaiswa pa30% yeukobvu hwestrip (0.09 mm ye 0.30 mm strip), nzvimbo yepakati iri 8% yeukobvu hwestrip (0.024 mm), uye radius yemucheto webanga inochengetwa iri pasi pe 0.01 mm - mapanga ekutsvedza anogayiwazve kana edge radius ikadarika 0.02 mm, izvo zvinoitika mushure mematani 30-50 ekutsvedza paseti yebanga. Kureba kweburr kunoyerwa nechiratidzo chekudhiraivha pamita yekutanga uye mita yekupedzisira yeslit coil yega yega. Kureba kweburr kunodarika 0.05 mm kunobviswa ne deburring station (seti yema spring-loaded carbide blocks anotsvedza burr edge ne 0.03 mm kubva kudivi rega rega) pakubuda kweslitting line. Kubviswa kwehuni kunodhura ¥0.30 pamita imwe chete yemutsara — asi bhiri rekugadzirisa huni yedhiziri remugadziri wechiteshi chekuJapan rine nzvimbo nhanhatu i¥150,000–¥300,000, pamwe nenguva yekudzimwa kwemutsetse wekugadzira. Kubviswa kwehuni kunosanganisirwa seyakajairwa pamirairo yese yezvidimbu zvemagetsi zvevatengi vemagetsi vekuJapan, pasina muripo wekuwedzera.

Kurongedza uye Kutumira — Zvinodiwa zveJIT Coil

Vagadziri vemagetsi vekuJapan vanoshanda nemagetsi anoyerera panguva chaiyo (JIT). Chidimbu che500 kg che 0.30 × 100 mm chakanyatsogadzirwa nechando chine urefu hweavhareji ye strip ye 2,100 m chinogamuchirwa uye chinoiswa zvakananga pa multi-slide stamping press payoff reel — hapana nzvimbo yekuchengetera iri pakati, hapana nzvimbo yekuongorora. Chidimbu chinofanira kunge chisina zviratidzo zvekuputira zvinopindirana (indentation inoitwa ne outer wrap pa inner wraps panguva yekudzokorodza nekubata), nekuti indentation ye 0.02 mm yakadzika pamusoro pe strip inogadzira die impact loading pa stamping press — punch inosangana ne 0.02 mm resistance yakawedzerwa panzvimbo iyoyo, press ram tilts, uye punch tip chipped edge inogadzira scrap terminal.

Zvinodiwa pakurongedza macoil anotumirwa kuJapan zvinosanganisira: simbi inoputirwa (dhayamita yemukati ye mandrel 300 mm, dhayamita yekunze 450 mm, mativi e flanges dhayamita 150 mm), ronda re strip pasi pekumanikidzwa kwakasimba (50 N pa 10 mm ye strip width — 500 N ye 100 mm width strip), wrap yega yega yakaparadzaniswa ne 0.10 mm polyethylene interleaf sheet kudzivirira wrap-to-wrap galling, coil yakavharwa mu vacuum-moisture barrier barrier barrier barrier ne silica gel desiccant (simbi isingasvibi, asi pepa re interleaf rinofanira kuchengetwa pasi pe 10% relative humidity kudzivirira organic acids yepepa kuti isasvibise pamusoro pe strip panguva yekutakura mugungwa), uye coil yakarongedzwa mu crate yehuni ine vibration-dampening foam base. Kuwanda kwezvisungo zveweld mucoil — coil yega yega inoumbwa nekusveta zvisungo zvakawanda zvematani mashanu emaster coil kubva kumucheto kusvika kumucheto pamutsetse wekutsveta — kwakaganhurirwa kune imwe chete yeweld joint pa500 m yekutenga maodha eJapan, zvichienzaniswa nechiyero cheindasitiri che1 pa300 m. Nzvimbo yeweld joint yakanyorwa nemutsara wependi yeyero 30 cm isati yasvika uye 30 cm mushure mejoin, uye mushandi westamping press anorayirwa kucheka nekurasa nzvimbo yeweld pagwaro rekupinda kwepress.

Rudzi rwezvigadzirwa zvese zvatinopa zvekushandisa pakudhinda nemazvo zvakanyorwa papeji rekatarogu yezvigadzirwa.

Rondedzero Yekugamuchira Yekuongororwa KwekuJapan KweQA Kunouya

Panyaya dzezvinotengeswa kunze kwenyika uye mitengo yesimbi isina ngura inotonhorera yakanyatsogadzirwa,peji rechigadzirwa che hard strip nemazvoinosanganisira magiredhi ekupisa aripo uye miganhu yehukuru. Kuti unzwisise zvakawanda nezvekugadzirisa simbi isina ngura,peji rechigadzirwa rakaputirwa nechandoinotsanangura michina yekugadzira uye matanho ekuita.

Sisitimu yeJapan Industrial Standards inopa hurongwa hwezvinhu —JIS G 4313 tambo dzesimbi dzisina ngura dzakaputirwa dzinotonhora dzezvitubundiyo mwero unoshanda we1/4H ne1/2H tembiricha dzinoshandiswa mu electronic spring contact stamping. Kuti tiwane ruzivo rwekune dzimwe nyika pamusoro pe connector testing,SAE International connector terminal test standardstsanangura nzira yekuyera kudziviswa kwekubatana uye mamiriro ekuyedza ema connector terminals anoshandiswa mumidziyo yemagetsi.

Mibvunzo Inowanzo bvunzwa