Pepa Parahi

Whakaahuatanga Poto:

He pepa parahi i hangaia mai i te parahi hikohiko, te konutea me ngā huānga iti hei rauemi mata, mā te tukatuka mā te ingot, te hurihuri wera, te hurihuri matao, te maimoatanga wera, te horoi mata, te tapahi, te whakaoti, kātahi ka tākai. He pai te mahi a ngā tukanga rauemi, te kirihou, ngā āhuatanga miihini, te ātete ki te waikura, te mahi me te tine pai.

Tukua mai he īmēra ki a mātou Pātaihia he Tauira

Taipitopito Hua

Ngā Tohu Hua

Whakataki Hua

He pepa parahi i ahu mai i te parahi hikohiko, te konutea me ngā huānga iti hei rauemi mata, mā te tukatuka mā te ingot, te hurihuri wera, te hurihuri makariri, te maimoatanga wera, te horoi mata, te tapahi, te whakaoti, kātahi ka tākai. He pai te mahi a ngā tukanga rauemi, te kirihou, ngā āhuatanga miihini, te ātete ki te waikura, te mahi me te tine pai. Kua whānuitia te whakamahinga i roto i ngā ahumahi hiko, motuka, whakawhitiwhiti kōrero, taputapu, whakapaipai me ētahi atu ahumahi.

Ngā Tawhā Hangarau Matua

2-1Te Hanganga Matū

Ingoa	Nama Koranu	Te Hanganga Matū (%, Mōrahi.)
Ingoa	Nama Koranu	Cu	Fe	Pb	Al	Mn	Sn	Ni	Zn	poke
Parahi	H96	95.0-97.0	0.10	0.03	---	---	---	0.5	Rem	0.3
	H90	88.0-91.0	0.10	0.03	---	---	---	0.5	Rem	0.3
	H85	84.0-86.0	0.10	0.03	---	---	---	0.5	Rem	0.3
	H70	68.5-71.5	0.10	0.03	---	---	---	0.5	Rem	0.3
	H68	67.0-70.0	0.10	0.03	---	---	---	0.5	Rem	0.3
	H65	63.5-68.0	0.10	0.03	---	---	---	0.5	Rem	0.3
	H63	62.0-65.0	0.15	0.08	---	---	---	0.5	Rem	0.5
	H62	60.5-63.5	0.15	0.08	---	---	---	0.5	Rem	0.5

Ripanga Konumohe 2-2

Ingoa	Haina	ISO	ASTM	JIS
Parahi	H96	CuZn5	C21000	C2100
	H90	CuZn10	C22000	C2200
	H85	CuZn15	C23000	C2300
	H70	CuZn30	C26000	C2600
	H68	---	---	---
	H65	CuZn35	C27000	C2700
	H63	CuZn37	C27200	C2720
	H62	CuZn40	C28000	C2800

Ngā Āhuatanga 2-3

2-3-1Wāhanga Whakatakotoranga:mm

Ingoa	Nama Koranu (Haina)	Te riri	Rahi(mm)
			Matotoru	Whānui	Roa
Parahi	H59 H62 H63 H65 H68 H70	R	4~8	600~1000	≤3000
	H62 H65 H68 H70 H90 H96	Y Y2 MT	0.2~0.49	600	1000~2000
			0.5~3.0	600~1000	1000~3000

Tohu Āhuareka: 0. Ngāwari; 1/4H. 1/4 Mārō; 1/2H. 1/2 Mārō; H. Mārō; EH. Tino Mārō; R. Hurihia Wera.

Wāhanga Manawanui 2-3-2: mm

Matotoru	Whānui
	Matotoru Whakaaetia te Rerekētanga ±			Whānui Whakaaetia te Rerekētanga ±
	<400	<600	<1000	<400	<600	<1000
0.5~0.8	0.035	0.050	0.080	0.3	0.3	1.5
0.8~1.2	0.040	0.060	0.090	0.3	0.5	1.5
1.2~2.0	0.050	0.080	0.100	0.3	0.5	2.5
2.0~3.2	0.060	0.100	0.120	0.5	0.5	2.5

Te Mahi Mīhini 2-3-3

Te riri		Kaha Kume N/mm2	Te whakaroa ≥%	Te pakeketanga HV
M	(O)	≥290	35	---
Y4	(1/4H)	325-410	30	75-125
Y2	(1/2H)	340-470	20	85-145
Y	(H)	390-630	10	105-175
T	(EH)	≥490	2.5	≥145
R		---	---	---