Black Head Stainless Steel Nkuruwankuruwa a Wɔde Yɛ Nneɛma

Oxide tuntum a ɛwɔ Black Head Stainless Steel Screws ti so no ma nsonsonoe kɛse a ɛwɔ aniwa so wɔ automated optical inspection mu, na ɛma anisoadehu nhyehyɛe a ɛwɔ assembly line no so no tumi hu screw gyinabea ne tightening tebea ntɛmntɛm. Sɛnea VDI/VDE 2634 ahwehwɛde ahorow a ɛfa pɛpɛɛpɛyɛ ho adansedi a ɛfa optical susudua nhyehyɛe ahorow ho kyerɛ no, nsonsonoe a ɛda greyscale ti tuntum ne stainless dade abɔde asaawa ntam no betumi adu bɛboro 120. Sɛ yɛde toto grayscale nsonsonoeɛ a ɛwɔ abɔdeɛ mu dadeɛ a ɛnyɛ den screw no mu, a ɛyɛ bɛyɛ 30 levels pɛ a, recognition pɛpɛɛpɛ rate no akɔ soro afiri 92% akodu bɛboro 99.5%, a ɛtew detection a wɔanhunu ne misjudgment rate no so kɛseɛ. Bere koro no ara mu no, matte surface roughness a ɛwɔ black oxide layer no bɛyɛ Ra 1.2 microns sɛnea ISO 4287 kyerɛ no, a ɛkorɔn kakra sen Ra 0.4 microns a ɛyɛ polished stainless steel. Saa micro-roughness yi ma contact damping a ɛda ti bearing surface ne connector no ntam no yɛ kɛse bere a wɔreyɛ den no, sɛnea DIN 267 Ɔfã 26 kyerɛ wɔ transverse vibration tests so no, residual preload retention rate a ɛwɔ M6 black-ti screws mu wɔ vibration tebea a ɛyɛ 30 Hz frequency ne 2 mm amplitude akyi 30,000 cycles betumi adu 85% wɔ mfitiaseɛ boɔ no mu, berɛ a abɔdeɛ mu dadeɛ a ɛnyɛ den nkɔnsɔnkɔnsɔn a ɛkora so no yɛ 78% pɛ wɔ tebea korɔ no ara mu, a ɛma tumi a ɛko tia-a ɛyɛ mmerɛw no tu mpɔn bɛyɛ 9%, na ɛma ɛyɛ nea wotumi de ho to so titire wɔ adan a ɛwɔ micro{25}}wosow a ɛkɔ so ase, te sɛ nsaano ahoɔden nnwinnadeɛ ne mfoninitwa mfiri ti.

 

 

Sɛ yɛhwɛ osuahu a ɛfa dwumadie ho a, ti kɔla agyiraeɛhyɛdeɛ a ɛwɔ tuntum-ti stainless steel screws boa wɔ-site nhyiamu adwumayɛfoɔ ma wɔhunu nsonsonoeɛ ntɛm ara wɔ screws a ɛwɔ nneɛma ahodoɔ anaa ahoɔden dodoɔ mu, na ɛtew asiane a ɛwɔ hɔ sɛ wɔde nneɛma bɛfrafra mu. Sɛnea ISO 898-1 agyiraehyɛde ho mmara a ɛfa fastener ahoɔden grades ho kyerɛ no, ɛwom sɛ dade a ɛnyɛ den nkɔnsɔnkɔnsɔn nni ti agyiraehyɛde a ɛyɛ ahyɛde de, nanso ti tuntum no wɔ botae mu ma ɔkwan a ɛyɛ mmerɛw a wɔfa so hu nsonsonoe sen dade stamp. Wɔ nhyiamu ankasa mu no, wɔ M4 tuntum-ti screws ho no, sɛdeɛ ISO 16047 torque-clamping force test kwan kyerɛ no, sɛ wɔde tightening torque no si 2.0 Nm a, clamping force boɔ a wɔsusuu no gyina bɛyɛ 1,700 Nm, wɔhyɛ clamping force deviation no so wɔ plus anaa minus 5% mu, na black head surface no yɛ repeatedly tightened with the electric screwdriver bit for 5 Nsɛnkyerɛnne biara nni hɔ a ɛkyerɛ sɛ ɛbɛpete anaasɛ ayɛ fitaa wɔ mpɛn du akyi, na friction coefficient no kɔ soro 0.02% pɛ, na ɛhwɛ hu sɛ wobetumi asan ayɛ torque nhyehyɛe wɔ bere tenten a wɔde di dwuma mpɛn pii mu. Enti, wɔde di dwuma kɛse wɔ aduruyɛ mfiri casings ne instrument panels mu, a ɛnyɛ sɛ edi aniwa sohwɛ ahiade ahorow ho dwuma nko na mmom ɛma nkitahodi no yɛ papa nso.

 

 

 

 

 

 

 

 

Nya mfonini ahorow fi adetɔfo hɔ anaa yɛ mfonini ahorow a egyina wɔn nkyerɛkyerɛmu anaa nhwɛsode ahorow so.

Mfonini ahorow no, nneɛma a wɔde yɛ nneɛma, sɛnea wɔde yɛ nneɛma a ɛwɔ soro, ne nsɛm afoforo a nnipa baanu no nyinaa di ho adanse.

 

 

 

 

Fa quote ma, si dodow a woakra no so dua, na fa nsɛm a ɛfa ho nyinaa ka ho.

Te sɛ sikatua ho nhyehyɛe, aguadi ho nhyehyɛe, nneɛma a wɔde kyekyere nneɛma, ne nea ɛkeka ho.

 

 

 

Sɛ woreyɛ nneɛma no a, di mfitiase mfonini ne nhwɛsode ahorow no so pɛpɛɛpɛ.

Bere a wɔhwɛɛ mu nea etwa to akyi no, wɔde ahwɛyiye kyekyeree no na wɔde kɔmaa adetɔfo no.

 

 

 

 

 

 

 

 

 

 

 

 

 

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