Engineering the Hex Flange Self Drilling Screw: Mfiridwuma mu Nsɛm a Wɔahyehyɛ
Wɔ fastener adwumayɛ mu no, Hex Flange Self Drilling Screw (a wɔtaa frɛ no SDS) no yɛ nnaadaa kwan so mmerɛw. Wɔ aniwa a wɔantete no fam no, ɛyɛ bolt a ɛwɔ drill point kɛkɛ. Nanso, wɔ Handan Dongchao Hardware Products Co.,Ltd, yɛte ase sɛ ahotoso a ɛwɔ saa fastener yi gyina dade kari pɛ a ɛda drill point hardness ne screw nipadua no tensile ahoɔden ntam koraa.
Nea ɛnte sɛ mfiri nkɔnsɔnkɔnsɔn a wɔtaa de di dwuma no, ɛsɛ sɛ SDS yɛ nnwuma abien a ɛne ne ho bɔ abira bere koro mu: ɛsɛ sɛ ɛyɛ den sɛ ebetumi atwa dade purlins (a ɛkɔ 6mm) mu a ɛnyɛ dulling, nanso ɛyɛ ductile araa ma ebetumi agyina torque a ɛkorɔn ano bere a wɔde rehyɛ mu a ɛnyɛ sɛ ɛbɛbɔ. Kratafa yi kyerɛkyerɛ sɛnea yenya saa kari pɛ yi wɔ yɛn adwumayɛbea a yɛyɛ nneɛma no mu kɔ akyiri.
The Metallurgy: "Brittleness" Ɔhaw no a wobedi ho dwuma
Adeɛ baako a ɛtaa di huammɔ wɔ self-drilling screws mu ne "brittle break," baabi a drill point no pae wɔ dadeɛ beam no mu. Eyi taa ba bere a wɔde ahopere yɛ ɔhyew a wɔde yɛ adwuma no anaasɛ ɛnhyia no.
Yɛn adwumayɛ kwan no de C1022 Carbon Steel anaa 1022A Alloy Steel, a wonya fi top-tier mills mu na edi dwuma. Ɔfã a ɛho hia ne yɛn quenching ne tempering cycle. Yɛde yɛn ani si soro hardness a ɛyɛ HRC 56-60 ma drill point no, bere a yɛkura core hardness a ɛma kwan ma ductility.
Nea efi mu ba: Screw no drills ahotew fa 3mm kosi 6mm dade (egyina model) nanso kura flexibility a ɛdɔɔso a ɛbɛkotow kakra wɔ adesoa a ɛboro so ase sen sɛ ɛbɛbubu. Eyi yɛ gyinapɛn a ɛnyɛ-nkitahodi ma yɛn ISO 9001 adansedi.
Mfiridwuma a Wɔde Kata So: Ɛboro Standard Zinc so
Wɔ gua a wɔde kɔ amannɔne, titiriw wɔ Asia Kesee Fam Apuei ne Mfinimfini Apuei no, electro-zinc plating a wɔahyɛ da ayɛ (fitaa anaa kɔkɔɔ) no ntaa nnɔɔso esiane mmeae a ɛhɔ yɛ nwini kɛse na nkyene wɔ hɔ nti. Yɛasesa yɛn nneɛma titiriw a yɛyɛ no de Ruspert Coating nhyehyɛe no adi dwuma.
Eyi nyɛ ade a ɛwɔ soro kɛkɛ; ɛyɛ dwumadie a wɔabom ayɛ.
Zinc Layer: Ɛma afɔrebɔ ahobammɔ a edi kan no.
Aluminium Flake Layer: Ɛyɛ honam fam akwanside a ɛmma nsu ntumi nkɔ mu.
Ceramic Topcoat: Ɛkata micro-pores no ano.
Wɔ yɛn mu sɔhwɛ dan mu no, yɛde batches hyɛ ASTM B117 Salt Spray Test ase. Bere a standard zinc screws taa kyerɛ red rust wɔ nnɔnhwerew 24 kosi 48 mu no, yɛn Ruspert-treated hex screws daa boro nnɔnhwerew 1000. Wɔ ɔdan atifi adwumayɛfoɔ fam no, saa data yi kyerɛ aseɛ kɔ warranty a ɛtia "red rust" a mogya fa ɔdan atifi panels mu bɛboro mfeɛ du.
Nsusuwii a Ɛyɛ Yiye: Hex Washer Ti no
Sɛ yɛhwɛ design engineering a, hex flange ti (DIN 7504K gyinapɛn) no di mfiridwuma atirimpɔw pɔtee bi ho dwuma. Flange a wɔaka abom no yɛ adwuma sɛ built-in washer, ɛma bearing no ani kɛse. Eyi kyekyɛ tumi a ɛkyekyere no wɔ dade krataa no fã a ɛtrɛw, na ɛtew asiane a ɛwɔ hɔ sɛ skru no bɛtwe afa ade no mu bere a mframa a ano yɛ den-rebɔ no so tew.
Yɛsan nso mfiri recess no katee fit 8mm anaa 10mm hex drivers. Anwiinwii a ɛtaa ba wɔ gua so ne "cam-out" (slippage), a ɛsɛe skru ti no. Yɛkura tolerances a ɛyɛ den wɔ hex geometry no so de hwɛ hu sɛ maximum torque transfer fi impact driver no so kɔ screw no so.
Specification Krataa a ɛfa Adetɔ ho
Yɛn B2B ahokafoɔ ne adetɔ adwumayɛfoɔ fam no, gyinapɛn parameters a yɛhwɛ so wɔ stock mu ni. Custom tenten ahorow wɔ hɔ bere a wɔabisa.
| Parameter a wɔde kyerɛ | Nsɛm a Wɔakyerɛkyerɛ mu |
|---|---|
| Susudua | DIN 7504K / ISO 15480. Ɔde ne nsa kyerɛɛ ne so |
| Atadeɛ | C1022 / 1022A Nneɛma a Wɔde Yɛ Karbon |
| Nneɛma a ɛyɛ den | Nneɛma a ɛwɔ soro: HRC 56-60 (Drill Point) . |
| Drill Tumi a Ɛwɔ Hɔ | 3mm, 4.5mm, 5.5mm, 6.0mm na ɛwɔ hɔ |
| Nneɛma a Wɔde Kata So | Bichromate Zinc, Ruspert (1000h), PPGI Kɔla a ɛne ne ho hyia |
| Nkɛntɛnso a Wɔtaa Yɛ | #12 x 25mm, #14 x 38mm, #14 x 50mm |
Ɛfa Handan Dongchao Hardware Nneɛma Co.,Ltd
Yɛnyɛ aguadi adwumakuw; yɛyɛ adwumayɛfo a yɛyɛ nneɛma. Yɛn adwumayɛbea no a ɛwɔ Handan, abakɔsɛm mu beae titiriw a wɔyɛ hardware, na ɛde n’adwene si fastener a ɛyɛ pɛpɛɛpɛ so denneennen. Yɛte ase sɛ wɔ yɛn a wɔkyekyɛ nneɛma no fam no, batch bɔne biako betumi asɛe wɔn din. Enti, yɛn quality control twe adwene si "boring" nsɛm-thread consistency, point concentricity, ne coating adhesion-a ɛho hia ankasa wɔ adwuma beae no so.
Bisa Mfiridwuma Ho Nsɛm Krataa (TDS) .
Sɛ wopɛ sɔhwɛ amanneɛbɔ pɔtee anaasɛ quote ma custom OEM order a, yɛsrɛ wo, di yɛn engineering adetɔn kuw no ho nkɔmmɔ. Yɛma traceability a edi mũ ma yɛn shipments nyinaa.
Tags a ɛyɛ hyew .: Hex Flange Ankasa Drilling Screws (DIN 7504K)|Handan Dongchao, China Hex Flange Ankasa Drilling Nkuruwankuruwa (DIN 7504K)|Handan Dongchao a wɔyɛ, wɔn a wɔde nneɛma ma
