ʻO Countersunk Head Blue-White Zinc Plated Self-Drilling Screw (Chinese National Standard: Phillips Countersunk Head Self-Drilling And Self-Tapping Screw GB/T15856.2-2002)

1. Nā kahua kūpono a me ke kumu maʻamau o ka lāhui Kina

Hana ʻia kēia huahana e like me ke kūlana aupuni GB/T15856.2-2002. He 90° countersunk head Phillips recess structure. Ma hope o ka laka ʻana, e pohō loa ke poʻo wili i loko o ka papa, e waiho ana i kahi ʻili pahee me ka ʻole o nā ʻōpuʻu. Hoʻohana nui ʻia ia i ka hui ʻana o nā pale kila kila māmā, nā lako puka a me nā puka makani, nā metala o loko, nā papa kila māmā, nā mea hoʻohui ʻāpana hao, a me nā mea kōkua alumini. Hoʻokuʻu ʻia nā huahana i nā ʻāpana i ka Middle East, Hikina Hema, ʻApelika a me nā mākeke lako a me nā mea kūkulu hale ʻē aʻe i ka makahiki āpau. Hele mai ia me ka hopena wili, e hoʻopau ana i ka pono no ka hana mua. Hiki iā ia ke wili ma nā ʻāpana kila lahilahi a me nā papa lāʻau paʻi ponoʻī, e lilo ia i mīkini hana ʻelua.

2. Koho Mea a me ka Hana Hana Hana

ʻO ka mea maka he kila kalapona kiʻekiʻe loa a ua hoʻopaʻa ʻia ka wela wela. ʻO ka ʻoi aku ka paʻakikī o ka ʻoki ʻoki ʻana o ka drill point i ka maʻamau, ʻoi aku ka ʻoi o ka wili ʻana, a ʻoi aku ka paʻa ʻana o ka wili ʻana i ka ʻoki ʻana a i ʻole ka haki ʻana ma ka wahi drill. Kaʻina hana: ʻumikūmākahi kaʻina o ke kaha kiʻi o nā mea maka, annealing, phosphating, kiʻi maikaʻi, ke poʻo anu, ka hoʻokumu ʻana i ke kiko, ka ʻōwili ʻana i ka milo, ka hoʻomaʻamaʻa ʻana i ka wela, ka zinc plating, ka hui holoi holoi, a me ka hoʻopili. He kūlana maʻamau ka ʻauwai hoʻomaha Phillips a kūpono ia no nā ʻāpana Phillips āpau. ʻAʻole maʻalahi ka paheʻe a hoʻomaha i ka pōʻino; ua hoʻokumu ʻia ka pitch thread ma nā ʻāpana maʻamau o Kina. Ke hoʻokuʻu ʻia i loko o ka mea kumu, paʻa ka hoʻopili ʻana a kūpaʻa i ka wehe ʻana ma lalo o nā kūlana haʻalulu lōʻihi. ʻOi aku ka paʻa o ka papa electroplating zinc blue.

3. Nā pono kumu waiwai

90° countersunk head huna huna: tapered countersunk head structure, the screw head surface is flush with the workpiece after tightening, and there is non exposed protrusions. ʻOi aku ka maikaʻi no nā hana hoʻonaninani o loko a me nā hana hoʻonaninani hale e pono ai ke ʻano maʻalahi.

ʻO ka hana paʻa paʻa ponoʻī Kina maʻamau: Hoʻohālikelike ʻia i nā ʻāpana wili maʻamau o Kina, hiki iā ia ke wili pololei i ka 0.7 ~ 6mm mānoanoa nā ʻāpana kila i ʻōwili ʻia a me nā pā hao. He kūpono no ka hoʻopaʻa ʻana i ka lāʻau paʻa, nā papa paʻa, a me nā ʻāpana plastik, e hōʻemi ana i ka nui o nā mea kūʻai aku.

4. ʻO ka mālama ʻana i ka maikaʻi a me nā lawelawe kākoʻo

Loaʻa nā kikoʻī maʻamau o Kina a pau, hoʻouna ʻia nā kauoha maʻamau i loko o 48 mau hola, a hiki ke ʻae ʻia nā ʻāpana liʻiliʻi a me nā kauoha hoʻopuka piha piha. Ma mua o ka haʻalele ʻana i ka hale hana, ʻike ʻia ka paʻakikī o ka drill point, Phillips recess strength, thread accuracy, coating adhesion, etc. Hiki ke hoʻopiliʻia i nā pūʻulu piha me ka mea holoi paʻa a me ka punawai o kā mākou hale hana, e hāʻawi ana i nā mea hoʻopaʻa paʻa hoʻokahi; Kākoʻo ʻo ia i nā wili hoʻolāʻau kūʻokoʻa i hoʻonui ʻia a kūikawā kūikawā e like me nā kiʻi a i ʻole nā ​​laʻana, a ʻo ka mana hana paʻa e hōʻoiaʻiʻo i ka hoʻoponopono hou ʻana i nā kauoha no nā mea kūʻai aku ma waho.