Gabatarwa zuwa Liner & Nut don Kayan Aiki Na Farko Na Irin Amurka (Eaton Standard NB200 & NB300)

1. Basic Definition & Aiki

Eaton Standard NB200 / NB300 su ne ainihin abubuwan da aka gyara na Amurka JIC 37° Triple-Lok na'ura mai aiki da karfin ruwa bututu kayan aiki, tare da bayyananne rabo na aiki don tabbatar da barga seal da haɗi:

• NB200: Kwaya  - Shugaban hexagonal tare da zaren ciki, galibi ana amfani dashi don ƙarfafawa da matsa lamba don amintar da taron dacewa.

• NB300: Hannun hannu / Ferrule na gaba  - Ƙarƙashin zobe mai siffar zobe tare da yankan yankan kaifi; idan aka takura, sai ya ciji bangon bututu don samun abin dogaro da hatimi da riko.

2. NB200 Kwaya (Amurka JIC Standard)

• Standard : Eaton / Aeroquip, mai yarda da JIC B-1

• Zaren : UNF American fine thread (misali, 7/16-20, 1/2-20, 9/16-18, da dai sauransu)

• Abu : Carbon karfe (zinc-plated / black oxide), bakin karfe 304/316

• Babban Ayyuka :

  • Yana watsa karfin juyi da axially yana matsa hannun rigar NB300

  • Yana haɗawa da zaren jiki mai dacewa don gyara bututun da ƙarfi

  • Yana hana sassautawa kuma yana tsayayya da girgiza a cikin mummunan wuraren aiki

• Ma'auni na gama gari (Inci) : Daidaita diamita na waje na bututun ruwa, tare da lambobin girman da suka dace da ƙayyadaddun bututu (cikakken bayani a cikin girman tebur ɗin da ke ƙasa).

3. NB300 Sleeve (Front Ferrule)

• Standard : Eaton Triple-Lok JIC 37°

• Tsarin : Single gaba ferrule tare da ciki yankan baki da waje 37 ° mazugi (matches JIC dacewa jiki)

• Material : High-carbon karfe, taurare bakin karfe (don lalacewa da lalata juriya)

• Ka'idar Hatimi :

  • Ƙunƙarar kwaya → yana tura hannun riga NB300 gaba

  • Mazugi na 37° na waje tare da mazugi 37° na jiki mai dacewa → yana samar da hatimin fuska

  • Cizon yankan ciki na cikin bangon bututu na waje → yana samun sakamako biyu na kamawa da rufewar radial

  • Mai jurewa jijjiga da matsi mai ƙarfi (har zuwa kusan 40MPa)

• Dokokin Daidaitawa : NB300-XX dole ne ya dace da NB200-XX na girman iri ɗaya. Misali: 1/4' tube → NB200-04 Nut + NB300-04 Hannun hannu

4. Girman Teburin Daidaitawa (NB200 & NB300)

5. Siffofin na Amurka JIC Sau uku-Lok Fittings (vs. Metric 24° Cone)

6. Zaɓi & Bayanan shigarwa

6.1 Nasihun Zaɓi

• Daidaita Girma: Lambobi biyu na ƙarshe na ƙirar NB200/NB300 sun dace da diamita na waje (misali, 04 = 1/4 , 06 = 3/8 ').

• Zaɓin Abu: Karfe Carbon don yanayin aiki na gaba ɗaya; bakin karfe 304/316 don mahalli masu lalata (misali, marine, masana'antar sinadarai).

6.2 Matakan Shiga & Bayanan kula

1. Shirya bututu: Tabbatar cewa ƙarshen bututun sun yi santsi, ba sa fashewa, kuma a yanka a tsaye (babu bevel).

2. Haɗa abubuwan haɗin gwiwa: Da farko shigar NB200 na goro a kan bututu, sannan zame hannun rigar NB300 (yanke gefen da ke fuskantar jikin da ya dace).

3. A danne: Hannun goro har sai ya tuntubi jikin da ya dace, sannan a yi amfani da matsi don juya 1 zuwa 1¼ (daidaita gwargwadon girman bututu).

4. Dubawa: Bayan shigarwa, duba cewa hannun riga ya ciji sosai a bangon bututu kuma babu yabo a ƙarƙashin matsin lamba.