Tinang hkum tinang-Drilling Screw a "Myit masin": Mungkan ting na gat lawk ni a matu kaja ai arung arai & nbung hpe tsi lajang ai lam hpe lata la ai
1990 ning hta, n-gun rawng ai fasteners ni hpe maigan de dut shabra ai bungli hta.Sinpraw Dingda, Rasha, Sinpraw Dingda Asia, Dingda Amerika, tinang -htu ai screw nishanhte gaw, lahkam mi hta sha htu, htu, gyit da ai hta atsawm sha galaw lu ai majaw manu shadan hkrum ai. Raitim, mari ai ni law law-hpe galaw shapraw ai ni nkau mi- gaw, screw a shinggan nsam ni hpe sha myit maju jung ma ai, ga shadawn, Hot-Dip Galvanized) shing nrai bawnu style hpe sha myit maju jung nna, shi a madung bungli galaw ai lam hpe hkang ya ai "myit masin" hpe n myit mada ma ai:
Arung arai lata ai lam hte katsi ai hku tsi lajang ai lam.
A matuHandan DongChao arung arai ni hpe galaw shapraw ai company kaw nna galaw ai., ndai madung hpaji masa hpe chye chyang ai gaw, Siberia a katsi katsang kaw nna Persian Gulf a katsi katsang re ai makau grup yin ni hpe hkam sharang lu na matu ahkyak ai lam rai nga ai. Ndai laika buk gaw anhte a mungkan ting na htingbu ni a matu hpaji rawng ai hku lata la ai lam matsun ya na matu self-drilling screws a hpang e nga ai arung arai hpaji hpe sawk sagawn ai.
Carbon n-gang hte n-hten ai n-gang: Arung arai lata ai lam
Self-drilling screw a arung arai gaw shi a hkum hkrang masa hte htap htuk ai jai lang ai lam ni hpe hkrak sha tsun dan ai. Mungkan sut masa hta, grau nna lang ai arung arai masa lahkawng gaw .Carbon n-gangHteN-gun n rawng ai hpri.
Kabon n-gang (C1022A)
Ndai gaw self-drilling screw ni a matu grau lang ai arung arai re.C1022A(sh) SWRCH22A) gaw n-gun n law ai -carbon n-gang rai nna, grai kaja ai katsi ai-baw n-gun rawng ai n-gang re. Tengman ai hku katsi ai hku galaw ai shaloi, ngang kang ai hte ngang kang ai hpe rap ra hkra galaw lu ai. Nta gap ai lam law malawng, n-gang bungli galaw ai shara ni, nsam rawng ai n-gang n-gang ni hpe jung da ai ni a matu, carbon n-gang self-drilling screws ni gaw manu jahpu-htuk manu dik ai lata la ai lam rai nga ai.
N-gun n rawng ai hpri (410 & 304)
Stainless steel hpe madung hku nna grai n-gun ja ai n-gun hpe ninghkap ra ai masa ni hta lang ai.
410 N-gun n rawng ai hpri (Martensitic):Magnetic hte nbung laru hte n-gun ja wa lu ai atsam nga ai. Shi a n-gun gaw carbon steel hta grau ai raitim 304 hta n-gun yawm ai.
304 N-gun n rawng ai hpri (Austensitic):Laksan hku nna n-gun n rawng ai hpe jaw ya ai majaw, panglai hkin-gau ginra ni (sh) chemical makau grup yin ni a matu htuk manu ai. Raitim, shi a ngang kang ai lam hpe n-gun ja ai hku nna grai n mai jat ai majaw, shi a htu shaw ai atsam gaw grau n-gun kya ai. Dai hpe grau n-gun n rawng ai aluminum sheets (sh) hpun ni a matu lang nna, manu grau tsaw ai hku nna sa wa ai.
Heat Treatment: "N-gun ja ai" hte "N-gun ja ai" hpe rap ra hkra galaw ai hpaji.
Self-drilling screw a laklai ai mayak gaw, n bung ai zawn rai nga ai arawn alai lahkawng hpe hkam la ra ai: a .ja ai htu sharamagri hpe gang je kau na matu hte angang kang ai coren hkrat sum hkra makawp maga na matu. Ndai shara kaw she heat treatment hpaji masa gaw ahkyak wa ai.
Case hpe ngang kang hkra galaw ai (Carburizing)
Ndai gaw carbon steel self-htu ai screw ni a matu masat da ai nbung n-gun hpe gram lajang ai ladat rai nga ai. Dai npawt tara hta 渗碳 (carburizing) lawm nna, ntsa kaw na grai ja ai-carbon layer hpe shabyin ya nna, grai ngang kang ai (ga shadawnHV 600-700) hpe n-gang n-gang ni hku nna gang je kau na matu. Dai aten hta, npawt nhpang gaw n-gun n law ai -carbon martensitic hkrang hpe n-gun jaw nna, ra kadawn ai ductility hpe jaw ya ai ( npawt nhpang a ngang kang ai lam gawHRC 32-40) hpe installation torque hte vibration hpe hkam sharang lu na matu, bawnu hpe n hkra hkra (sh) thread ni hpe n hkra hkra pat shingdang lu ai.
Hpyen n-gang (SCM435)
2019 ning hta n-gun ja ai n-gang npawt nhpang bungli masing ni a matu.Sinpraw DingdungHteDingda Amerika, alloy n-gang arung arai ni zawn re aiSCM435kalang lang lang ai. Ndai arung arai ni gaw, n-gun shayawm nna n-gun shayawm ngut ai hpang, grau tsaw ai n-gun hte ngang kang ai lam hpe jaw ya nna, grau htum ai n-gang n-gang ni hpe (ga shadawn, 12mm jan) shang lu ai. Shanhte hpe htunghking hku galaw ai "drill then tap" ngu ai ladat hpe galai shai na matu lang chye ai majaw, gawgap ai lam hpe grai kaja hkra galaw ya lu ai.
Target Market ni a matu lata la ai lam matsun
Lahta na hpaji masa ni hpe madung tawn nna, ginra shagu na client ni a matu lawu na lata la ai hpaji jaw ga ni hpe jaw ga ai:
Sinpraw Dingda Ginwang (Saudi Arabia, UAE, etc.) a matu.
Ning dat ai:Katsi ai nbung laru, panglai hkin-gau hka lim ai, hka lim ai majaw grai sawng ai hka lim ai lam ni.
Hpaji jaw ga: Katsi ai -Hka lup ai (HDG) C1022 Carbon n-gang. HDG coating (55μm hta grau kaba ai (sh) maren sha re ai n-gun) gaw shaning tsa lam hku n-gun n rawng ai hpe makawp maga ya lu ai, C1022 arung arai gaw standard case hardening hte n-gun rawng ai n-gang law malawng a matu ram nga ai.
Rasha gat lawk a matu
Ning dat ai:Siberia hte Sinpraw Dingda mungdan ni hta grai n-gun n law ai majaw, madang dep ai carbon steel hta "katsi ai n-gun" byin wa ai.
Hpaji jaw ga:Hkrak ai lit - hpai ai npawt nhpang ni a matu, myit yu uAlloy Steel hkum nan -htu ai screw nilaksan n-gun n law ai-hpyen n-gun hpe chyam dinglik ai lam ni hpe lai la sai ni, shing nrai lata la u .410 N-gun n rawng ai hpri-40℃daram katsi ai grup yin hta shim lum ai hku gawgap lu na matu grau ngang kang ai.
Sinpraw Dingda Asia gat lawk (Indonesia, Vietnam, etc.) a matu.
Ning dat ai:Kalang lang byin ai nbung laru ni hta pull-out hte shear hpe ninghkap lu ai atsam kaba ra ai.
Hpaji jaw ga: Wafer bawshing nraiHex Washer bawscrew ni gaw madung rai nga ai. Aten eC1022remains the top choice, nbung laru kaba a npu e core ngang kang ai lam hpe hkam la lu na matu hte fatigue fracture hpe makawp maga na matu, nbung laru hpe n-gun ja ai hku tsi lajang ai lam hpe atsawm sha hkang lu na matu ahkyak nga ai.
Dingda Amerikan gat lawk (Brazil, Chile, etc.) a matu.
Ning dat ai:Mining hte hpaga lam galaw ai shara ni hta, n-gun ja ai plate ni hpe matut mahkai ai lam ni law law nga ai.
Hpaji jaw ga:Client ni law law lang ra aiSAE J78hta n-ga, madang ni hpe mungDIN 7504. 6mm hta grau galu ai n-gang n-gang ni a matu, 1 zawn re ai diameter kaba ai drill ni hpe hpaji jaw u.#12 (sh) #14 masat masa ni, hte dai hte maren htu shaw ai lawan ai lam hpe hkrak hkrak hkan sa ra ai.
Install galaw na matu hpaji jaw ga: "Shinggyim" hkrat sum ai lam hpe koi gam na matu
Grau kaja ai self-drilling screw hpe pyi n jaw ai hku bang yang hkrat sum chye ai. Handan DongChao gaw, gap ai shaloi lawu na lam ni hpe hkan sa na matu, client ni hpe hpaji jaw ai:
Lawan ai hku hkang ai:Carbon steel self-htu ai screw ni hpe bang ai shaloi, htu ai lawan ai hpe 10 lapran hta hkang ra ai.1,500 - 2,500 RPM.
Grai yawm ai:Htu ai aten hpe galu shangun nna, htu ai shara hpe n-gun ja shangun ai friction heat hpe shabyin ya nna, n-gun n rawng hkra galaw ya ai.
Grai tsaw ai:Kalang ta grai katsi ai hpe byin shangun nna, thread galling (sh) stripping byin shangun chye ai.
Dingyang nga ai:Drill hpe plate hte dingyang tawn da ra ai. Angled install galaw ai gaw drill point hpe hkra machyi shangun ai sha n-ga, thread n kaja ai hku byin wa ai majaw, holding power hpe grai shayawm kau ya ai.
2019 ning kaw nna hpaji rawng ai galaw shapraw ai wa hku nna.Miwa mung, Handan, Handan DongChao arung arai ni hpe galaw shapraw ai company kaw nna galaw ai.screw shagu a hpang na lit hpe chye na ai. Anhte gaw 1 hte maren hkan sa ai arung arai ni hpe sha jaw ai n re.DIN, JIS, GOST,HteSAEmadang ni hpe hkan sa ai raitim, mungkan ting na client ni hpe hpaji hparat hpaji ninghkring ni hku nna tatut galaw mai ai engineering mayak mahkak ni hpe hparan lu hkra karum na matu mung ap nawng da ai.
