Pehea e ho'āʻo ai i nā bolts hex

1. Nānā mākou i ke ʻano onā kīme ko mākou mau maka e ʻike inā maikaʻi ka zinc ʻeleʻele electroplated o nā bolts, inā he kiko a ʻaʻole paha.

2. ʻO ka hoʻāʻo paʻa ʻana o nā bolts. E hoʻomaʻemaʻe i ka ʻaila ʻaila ma kamea hoʻopaʻaʻili me ka ʻaila a i ʻole ka mea hoʻomaʻemaʻe, e hoʻomoʻi iā ia i loko o ka wai keleawe keleawe 3% neutral no 40-60s, a nānā iā ia me nā maka ʻōlohelohe ma hope o ka loaʻa ʻole o ka ʻike ma ka ʻili.

3. Ka nānā 'ana i ka corrosion kū'ē o nā bolts. E hoʻomaʻemaʻe i ka ʻaila ʻaila ma ka ʻili paʻa me ka ʻaila a i ʻole ka mea hoʻomaʻemaʻe, e hoʻoinu iā ia i loko o ka 0.17% sulfuric acid solution no 20-40s, a nānā iā ia me nā maka ʻōlohelohe ma hope o ka loaʻa ʻole o ka ʻili ma ka ʻili.

4. E hoʻohana i ka hoʻāʻo kūʻē i nā bolts. E hoʻomaʻemaʻe i ka ʻaila ʻaila ma luna o ka mea hoʻopaʻa me ka ʻaila a i ʻole ka mea hoʻomaʻemaʻe, e kau i ka paipu aniani me ke anawaena o loko o 10mm a me ka lōʻihi o 500mm ma luna o ka mea hoʻopaʻa e ana ʻia, a ʻo ka nānā ʻana o ka mea hoʻopaʻa he 45 ° mai ka pahu aniani, me kahi mamao o 30mm. E hoʻouka i kahi funnel ma luna o ka paipu aniani, a kaupaona 100g o ke one quartz me ka nui o ka 0.5-1.0mm a me nā kihi ʻoi. E hāʻule wale ke one a pili i ka ʻili o ka mea paʻa. Ma hope o ke kahe ʻana o ke one, e holoi mālie i ka ʻili o ka mea hoʻopaʻa, e hoʻokomo i loko o 0.5% neutral copper sulfate solution no 30s, e lawe i waho a holoi me ka wai kahe, a nānā me nā maka ʻōlohelohe.

5. Hoʻomaʻemaʻe maikaʻi nānā no ka ʻeleʻele kiʻi o nā bolts. Ma hope o ka ʻeleʻele a hoʻomaʻemaʻe ʻia ka mea hoʻopaʻa, a ma mua o ka saponification a me ka hoʻokomo ʻana i ka ʻaila, e hoʻoheheʻe i 1-2 kulu o 10% phenolphthalein alcohol solution ma luna o kona ʻili. Inā ʻulaʻula ka hopena, hōʻike ia ʻaʻole maʻemaʻe.

6. Nānā anana Geometric. E like me ke ʻano o ke ʻano, nā kaha kiʻi a me nā palapala hana o nā mea hoʻopili, e nānā me nā mea hana like, nā kāleka a me nā mea ana.

7.Nānā i ka nui o nā bolts.

① I ka wāhana nui, e nānā 'ia nā mea nui a pau; ʻAʻole e emi ke ʻano o nā mea hoʻopili maʻamau ma mua o 10 mau ʻāpana. ʻAʻole e emi iho ka paʻakikī a me ka hoʻomaʻemaʻe ʻana i ka maikaʻi ma mua o 1-3 mau ʻāpana i kēlā me kēia pūʻulu.

② E nānā ʻia nā mea hoʻopaʻa a pau i hana ʻia i ka hui aʻe a i ʻole me nā koi kūikawā; A i ʻole ka nānā ʻana e like me nā palapala kaʻina.

③ Inā kūpono ʻole kekahi mau mea i ka nānā ʻana, e pāpālua ʻia ka nui no ka nānā hou ʻana. ʻO ka poʻe kūpono ʻole i ka nānā hou ʻana e manaʻo ʻia e like me ka hana hou a i ʻole ka ʻoki ʻana.