Page 359 - Content.pmd

£_õ & Gm (CG & M) T«t£ 1.6.83 - 85dLô] ùRôPo×dLÚj§Vp
@©hPo (Fitter) - ùTôÚj§ JÚe¡û]jRp (Fitting assembly)

G°V YûL vúLWlTo Utßm vúLWl©e (Simple scraper & scraping)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• TWlûT vúLWl©e ùNnY§u AY£VjûR áßRp
• EVoúUÓ (high spots) GuTûR Tt±d áßRp
• úT¬e (bearing) TWl× Gu\ôp Gu] G]d áßRp
• vúLWlTo YûLLs, TVuTôÓLs, ûNv Utßm EúXôLeLû[l Th¥VXõÓRp
• vúLWlTûW ©¥dÏm N¬Vô] úLôQm Utßm ©¥dÏm ¨ûX.
TWlûT vúLW©e ùNnYRu AY£Vm
(Necessity of scraping surface)

RhûPVô] ApXÕ Yû[kR TWl×L°p
Es[ £±V úUÓLs (slight errors) N¬ ùNnÙm,
AZÏ TÓjRÜm (decorately) TVuTÓ¡\Õ.

RhûPVô] ApXÕ Yû[kR TWl×L°p CWiPôYÕ úNôRû] EVoúUÓL°p (high
Juú\ôùPôuß EWôÙm TϧL°p Es[ spots) Uôod¡e LômTÜih (marking compound)
TWl©p ÖÔdLUô] ©h (high degree of fit) JúW Uô§¬VôL T¡okR°jÕ (distribution) RPY
ùTßYRtÏ vúLWl©e (scraping) úYiÓm. (Fig 2)
ùNnVlTÓ¡\Õ.

ùU£²e ApXÕ ûTXõe (filing) ùNnVlThP
TWl×Lû[ ÖÔdLUôL vúLWl©e
ùNnYRtÏ Øu× Wl vúLWl©e
(rough scraping) ùNnVlTÓ¡\Õ. ÖÔdLUô]
TWl× ¡ûPdL ªLf £±V A[Ü
TpúYß YûL úT¬e LôiPôdh (bearing
EúXôLjûR ùY°úVt± ©²£e
contact) Fig 3
(finishing) ùNnVlTÓ¡\Õ.
1 NoúTv ©ú[hÓPu CûQkR
úT¬e TWl×L°p Es[ ùT¬V úUÓLs EúXôLjÕLs, CRu ÕLsLs ª°Úm
(High spots and bearing surfaces)
YiQm (shiny) úRndLlTh¥ÚdÏm.
NoúTv ©ú[h ÁÕ lÚμVu ×Þ (Prussian
2 CÕ Uôod¡e LômTÜih LXkÕ ARu
blue) ApXÕ GiùQn LXdLlThP
¨\jûR ùTt±ÚdÏm. CkR Tϧ SôoUp
ùWhùXh (red lead) TûN úTôp RPY
LôiPôdh (normal contact) G]lTÓm.
úYiÓm. vúLWl©e ùNnVlTP úYi¥V
_ôlûT NoúTv ©ú[h ÁÕ ûYjÕ
_ôl©u ÁÕ ¸rúSôd¡ £±R[Ü AÝjRm
ùLôÓjÕ _ôl©u ÁÕ GpXô Tϧ«Ûm
TÓUôß SLojR úYiÓm. ©\Ï LY]UôL
ùNeÏjÕ (perpendicular) §ûN«p _ôlûT
úUp úSôd¡ çdL úYiÓm.

UßT¥Ùm vúLWl©e ùNnÙm Øu×
_ôl©p T¥kR Uôo¡e LômTÜiÓ (marking
compound) þI TôodL úYiÓm.
ØRp úNôRû] êuß T[T[lTô]
§hÓL°p EûPVÕ. êuß EVoúUÓLs
3 LômTÜiÓPu JhPôR TôLeLs (normal
(high spots) vúLWl ùNnVlTÓ¡\Õ. (Fig 1) contact point) Uôod¡e LômTÜih B]Õ
TPôUp CÚdÏm

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