Round steel link chain making for 30+ years

Abubuwan da aka bayar na SHANGHAI CHIGONG INDUSTRIAL CO., LTD

(Masana'anta sarkar haɗin gwal)

Ɗaga Sarkar Sarkar Zagaye na Amfani, Dubawa da Jagorar Kashewa

1. Dagawa zaɓen sarkar mahaɗi da amfani

(1)Sarkar ɗagawa mai welded daraja 80WLL da index

Table 1: WLL tare da sarkar majajjawa kafa (s) kusurwa na 0 ° ~ 90 °

Diamita na mahada (mm)

Max.WLL

Kafa ɗaya

t

2-kafa

t

3 ko 4 kafa

t

7.1

1.6

2.2

3.3

8.0

2.0

2.8

4.2

9.0

2.5

3.5

5.2

10.0

3.2

4.4

6.7

11.2

4.0

5.6

8.4

12.5

5.0

7.0

10.5

14.0

6.3

8.8

13.2

16.0

8.0

11.2

16.8

18.0

10.0

14.0

21.0

Table 2: WLL

lifting round link

(2)sarkar majajjawairi da kusurwa kafafu

a.sarkar kafa daya majajjawa

single leg chain sling

b.Sling sarkar kafa 2

2-leg chain sling

c.Sling sarkar kafa 3

3-leg chain sling

d.majajjawa sarkar kafa 4

4-leg chain sling

(3) dagawa zagaye mahada sarkar amfani

a.nauyin kaya zai zama daidai ko ƙasa da ɗaga sarkar majajjawa max.WLL.

b.lokacin amfani da majajjawa sarkar sarkar kafa 2 ko ƙafafu da yawa, babban kusurwar ƙafafu na majajjawa, ƙarancin nauyin da zai iya ɗagawa;kusurwar ƙafafu zai kasance ƙasa da 120° a kowane hali (watau kusurwar ƙafar sarkar tare da kusurwar gubar tsaye zai zama ƙasa da 60°).

c.lokacin da ake ɗagawa a cikin ƙugiya, nauyin zai zama ƙasa da 80% WLL.

d.Sarkar ɗagawa za ta kasance madaidaiciya ba tare da tsagewa ba, dunƙule ko lanƙwasa.Yi ƙoƙarin guje wa abubuwa masu nauyi suna birgima akan sarkar.

2. Dubawa na dagawa zagaye mahada sarƙoƙi

(1) dubawa kullum

a.Inspector, mita da rikodi

Ma'aikaci ko ma'aikacin da aka keɓe zai gudanar da binciken bayyani na yau da kullun akan sarkar ɗagawa kowace ranar aiki, kuma za a sami rikodin "nau'in binciken majajjawa yau da kullun" (duba Annex) akan wurin, yana nuna cewa ana iya amfani da majajjan kullum.

b.Duban gani

Bincika bayyanar da gani don alamun mummunan lalacewa, nakasawa ko lalacewa ta waje.Idan an sami lahani a cikin binciken, tabbatar ko za a iya sake amfani da ita bisa ga hanyar dubawa ta yau da kullun.

(2) Dubawa lokaci-lokaci

a.Inspector, mita da rikodi

Ma'aikatan da aka zaɓa za su gudanar da cikakken bincike a kan sarkar bisa ga alamun lahani da aka tsara ta hanyar dubawa na yau da kullum, kuma su yi bayanai don kimanta ko za a iya ci gaba da amfani da sarkar.

b.Duba maki

i) Ko alamun waje kamar alamar sarkar ɗagawa da nauyin aiki na ƙarshe sun fito fili;

ii) Ƙarƙashin Ƙarshen Ƙarshe na Ƙarshen Ƙarshe (Master Link, Intermediate Link, Connectors and hooks) na sarkar ɗagawa sun lalace, yanke da fashe, wanda ya wuce daidaitattun buƙatun kuma ba za a iya amfani da su ba;

iii) Lalacewar hanyar haɗin yanar gizo: hanyar haɗin sarkar tana karkata, lanƙwasa da tsayi, kuma ba za a iya amfani da ita ba lokacin da ta wuce daidaitattun buƙatun;

iv) Rushewar haɗin gwiwa: daraja, daraja, gouge da lalacewa na hanyar haɗin yanar gizo a waje na sashin madaidaiciya ba za a iya amfani da shi ba lokacin da ya wuce daidaitattun buƙatun;

v) Nakasar ƙugiya: nakasar "buɗe" da kuma murguda buɗaɗɗen ƙugiya sun wuce daidaitattun buƙatun kuma ba za a iya amfani da su ba;

vi) Cracks: fasas da aka tabbatar ta hanyar kallo na gani ko NDT ba za a iya amfani da su ba.

3. Scrapping matsayin

a.nakasawa:

matsanancin tsawo elongation :3)

ciki tsawon elongation :5)

b.sawa:

hanyar haɗin giciye diamita bayan sawa bazai zama ƙasa da 10% ba (watau diamita <90% na ƙima)

c.fasa:

Ba a yarda da fashewa a saman hanyar haɗin yanar gizon ta hanyar dubawa na gani ko duba kayan aiki.

d.lankwasawa ko murdiya:

Babu bayyanannen lankwasa ko murdiya, mummunan lalata ko abin da ba za a iya cirewa ba da aka yarda don hanyar haɗin yanar gizon.

(2) kukku

a.Buɗe ƙugiya: haɓaka girman buɗe ƙugiya ba zai wuce 10% na ƙimar ƙima ba.

b.Sashe na damuwa (mai haɗari): ba za a rage kauri na sashin a wurin lalacewa da fiye da 5% ba.

c.Lalacewar nakasawa: karkatar da nakasar ƙugiya ba za ta wuce 5% ba.

d.Cracks: Ba a yarda da tsagewa a kan gabaɗayan ƙugiya ta hanyar dubawa ta gani ko duba kayan aiki.

e.Nicks da gouges: ana iya gyara su ta hanyar niƙa ko tattarawa.Filayen da aka gyara da kuma saman da ke kusa da su za su yi sauye-sauye cikin sauƙi ba tare da sauye-sauye na gaggawa a cikin sashin ba.Ba za a rage kauri na sashin gogewa da fiye da 5%.

(3) master link

a.Hargitsi: karkatar da duk maigidan haɗin gwiwar ba zai wuce 5%.

b.Wear: lalacewa na babban mahaɗin saman ba zai wuce 10% na ainihin diamita ba

c.Cracks: Ba a yarda da fasa a kan gabaɗayan mahaɗin mahaɗin ta hanyar dubawa na gani ko duba kayan aiki.

(4) sarkoki da sauran kayan haɗi

a.Buɗewa: Girman buɗewa na mari ya wuce 10% na ƙimar asali.

b.Wear: diamita na fil ko fil ɗin yana sawa fiye da 10% na diamita na asali;lalacewa na sashin damuwa (mai haɗari) ya fi 5%

c.Crack: ba a yarda da tsaga akan gabaɗayan na'urorin haɗi ta hanyar dubawa na gani ko duba kayan aiki.

4. Misalai na ɗaga sarƙoƙin mahaɗi a cikin sabis

(1) Hanyoyin haɗin sarkar al'ada

deformed hook -lifting round link

(2) ƙugiya mara kyau (wanda aka goge)

deformed hook - lifting round link

(3) Lalacewa, lalacewa da ɓarna hanyoyin haɗin sarƙoƙi (scrapping)

scrapping lifting round link

(4) Lalacewar gida a saman mahaɗin sarkar (ana iya gyarawa)

lifting round link - local wear

(5) An ɗan sawa hanyar haɗin sarkar kuma ta lalace (ana iya ci gaba da amfani da ita)

deformed lifting round link

Lokacin aikawa: Dec-17-2021

Bar Saƙonku:

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