CENTRE OF EXCELLENCE

[CHEMICAL GROUP]

CHBT – 02 [ BASIC FITTINGS & MEASUREMENTS ]

Instructor :- Mr. A.H. SHAH

PRESENTATION

•Introduction

•Concept of Safety

•Personal Safety – General Safely & Plant / Industry Safety

•Accident

•Caution

•Prevention

•Safety Management

•Machine Guard

•Good House Keeping

•Lighting

•Ventilation

•Temporature

•Fire Safety

•Material Landling

SAFETY IN CHEMICAL INDUSTRIES

•Personal Safety Equipment

•First Aid

•Industrial Discipline

PERSONAL SAFETY

•The ferrous Metals and alloys used :

•Pig Iron

•Cast Iron

•Wrough Iron

•Steels and Alloy Steels

METROLOGY

PIG IRON

•Gray cast Iron Casting of Machine parts, Machined easily

•White cast Iron : Very Hard, Very difficult to machine (Chilled cast Iron) can not be weleded.

•Molleable cast Iron : Increased ductility, tensile strength and toughness, produced from cast Iron

•Nodular Cast Iron : Similar to malleable cast Iron, Produced without any heat treatment.

•Wrouht Iron : 99.9% of Iron production puddling process astron or byres process shaft.

CAST IRON

STEEL (PLAIN CARBON STEEL)

Classified according to their carbon content.Dead mild steel 0.1 to 0.125 % Carbon Uses wire, road & Sheets

Mild Steel 0.15 to 0.3 % carbon General workshop process

Medium Carbon steel 0.3 to 0.7 % carbon Axles, drop forgines, High tensile tubes, wires, agriculture tool.

High Carbon Steel 0.7 to 0.9 % carbon

0.9 to 01.1 % carbon

1.1 to 1.4 % carbon

Springs, forging, dies and wood chisels.

Cold chisels, press dies, punches.

Files, drills, gauges and other cutting tools

MANUFACTUREING PROCESSES

Bessemer Process L.D. Process

Electric Process Open Hearth Process

STEEL RULE

•S.I. (System International) System

•Matric Ssystem : meter, C.M., M.M., (MKS)

•British System

•Feet, Inch (FPS)

•STEEL RULE : 10 MM, 5 MM, 1 MM, 0.5 MM

Introduction : Material Measuring with steel rules.

MEASUREMENTS

Linear Measurement Units

•Introduction Material Parts :

•Fix Jaw ( 1 and 2)

•Moveable Jaw ( 3 and 4)

•Vernier Slide (5)

•Beam (6) Depth Bar (7)

•Thumb Lever (8)

• Vernier Scale (9)

•Main Scale (10)

Least Count of vernier Calipers

•Main Scale division = 1 mm

•Vernier Scale Division = 49 / 50 mm

•Least Count =1 – 49 / 50 = 50 – 49 = 1 / 50 = 0.02 mm

• 50

•Reading of verner caliper

VERNIER CALIPER

•Use

•Function of each parts :

•PARTS : (1) Base (2) Beam (3) Vernier Slide (4) Fine adjusting

• screw (5) Main scale (6) Lock nut (7) Scriber

VERNIER HEIGHT GUAGE

•Introduction : 0.1 mm

•Principle : Screw & Nuts,

•Parts :

•Range : 0.25 mm, 25 – 50 mm,

50 – 75 mm, 75 – 100 mm

•Graduation :

•Barrel 1 mm and 0.5 mm (Main Division & sub division )

•Themble : 0.01 mm

Numbers on Barrel :

•0, 5, 10, 15, 20 & 25 mm

Numbered on Thimble :

•0, 5, 10, 15…… 45 – 50 on Clockwise direction

OUT SIDE MICROMETER

The Distance move by the spindle during one rotation of thimble is 0.5 mm.

Movement of the one division of the thimble = 0.5 x 1/50 = 0.01 mm

•List Count : Small Parts of Barrel

Numbers of parts on thimble

= 0.5 = 0.01 mm

50

•Introduction :

•Parts :

•Use :

•Graduation :

•Main Scale 0O-90O -0O-90O -0O-90O

•Vernier Scale : 12 Part, Each 3rd Line is marked 0- 15 – 30 – 45 - 60

•List Count : 2 MSD – 1VSD

= 2o – 23o = 1o = 51

12 12

Reading : MSD = 41o

VSD = 0 – 501

Reading : 41o - 501

VERNIER BEVEL PROTRATOR

• Introduction :

• Principle :

• Types : Plunger Types & Lever Types

• Parts :

1. Pointer

2. Ratatable Bezzle

3. Bazzle Clamp

4. Back Lug

5. Transparent dial Cover

6. Stem 7 . Plunger

8. Anvil 9. Revolution Counter

• Graduation :

• Readng :

• Stand :

Dial Test Indicator

• Introduction :

1. Protractor Head

2. Square Head

3. Centre Head

4. Rule

COMBINATION SET

•Steel Rule

•Scriber : Future of Scribers

Use of Scribers

•Try Square : Parts

Use

•Divider : Parts

Use

Specification

HAND TOOLS

Jenny Caliper : Constructional features

Types

Use

Punch : Name of different Marking Punch Use

Hammers : Use Parts Types

Work Holding Device : Banch Vice : Parts & usesSize Vice Clamp

•HACKSAW FRAME AND BLADE

•Types of Frame : Solid Frame

Adjustable Frame

•Hacksaw Blades :

•Introduction

•Types

•Pitch of Blade

CUTTING TOOLS

•Introduction :

•Material : HSS

•How to hold a File

•Parts of a File

ELEMENT OF A FILE

• Specification :

• Cut

• Grade : Rough, Bastard, Second Cut, Smooth, Dead Smooth

• Shapes : Flat, Hand, Square, Triangular, Half Round, Knife Edge,

• Size : 100 mm to 200 mm Light Work

200 mm to 450 mm Heavy Work

Types of Filing :

(1) Cross Filing (2) Straight Filing (3) Draw Filing

File of Pinning

TYPES OF CUT

• Material

• Types : Parallel Shank and Taper Shank

• Parts of Drill :

DRILL

Drill Size

• Matric System & British System

• Letter Drills : A / 5.944 mm to Z / 10.490 mm

• Number Dril : 1 / 5.791 mm to 80 / 0.35 mm

Cutting Speed : V = JJ x D x N Meter / Minut

1000

Feed :- REVOULUATION = THICKNESS OF METAL

CUTTING FEED

Drill Holding Divice : Slive, Socket, Chuck & Key Drift.

Drill Angle : Point Angle, Rake Angle, Helix Angle

DRILL SIZE

• Twist Drill 9.50 IS5101 HS

Types Dia ISNo. Material

Drill Defect & Causes :

Oversize Holes

Over Heated Drills

Rough Hole

Unequal and Interrupted flow of chips

Split webs or broken drills

Drilling Machines

Banch Type

Pillar Type

Drill Specification : Drill Defect & Causes :

HAND REAMERSIntroduction :

Parts :

Drill Size for Reaming :

Reaming :

HAND REAMERS

HAND TAP & TAP WRENCH (INTERNAL THREADING)

Introduction :

Material :

Parts :

Tape In Set : Taper, Intermidiate & Plug

Tape size Drill : Drill Dia = Tape Dia – 2 x 0.61p

Tape wrench :

HAND TAP & TAP WRENCH INTERNAL THREADING

Construction :

Types :

Die Stock : Types – Split Die Stock`

Adjustable Die Stock

DIE AND DIE STOCK EXTERNAL THREADING

V Thread Types :

V Thread Parts :

ISO Metric Thread :

ISO Inch Thread : (UNF)

BSW :

BSF :

BA :

BSP :

STANDARD SCREW THREAD

Bolt :

Types – Hexagonal & Square

Nut :

Types – Hexagonal & Square

Washer :

Purpose

Types

Specification

Revet :

Introduction

Material

Types

FASTNERS

High Limit :

Law Limit :

Tolerance :

Fit :

Clearance Fit

Interference Fit

Transition Fit

LIMIT AND FITS

Classification :

Thermoplastic Adhesives

Thermoplastic Resins

Thermoplastic Rubber

Thermosetting adhesive

Heat Activated

Solvent Activated

Impact Adhesives

SYNTHETIC ADHESIVE

Lock Nut

Self Locking Nut

Wire Lock

Slotted and Castle Nut With Split Pin

Grooved Nut

Locking Nut

Lock – Washer with Lug

Tab Washers

Spring Washers

LOCKING DEVICES

Purpose :

Types :

Fixed Type

Removable Type

FOUNDATION BOLTS

COE CHEMICAL SECTOR

ITI DASHRATH

THANKS