Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 6447 (1986): Vent wires for use in foundries [MTD 14:Foundry]

IS : 6447 - 1986

Indian Standard SPECIFICATION FOR

VENT WIRES FOR USE IN FOUNDRIES

( First Revision )

Foundry Sectional Committee, SMDC 17

Chairman

DR S. S. KHANNA

Representing

National Institute of Foundry & Forge Technology, Ranchi

M0nbST~

SHRI M. M. C. A~ARWAL Heavy Engineering Corporation Ltd, Ranchi SHRI A. K. BANERJEE ( Alternate )

SHKI S. CHAUBEY Steel Authority of India Ltd ( Rourkela Steel Plant ), Rourkela

SHRI U. MISHRA ( Alternate) SHRI K. L. CHAUDHARY Tata Engineering & Locomotive Co Ltd,

SHRI A. BHATTACIHARJEE ( Alternate ) Jamshedpur

SHRI S. H. COMMISSA~IAT The Institute of Indian Foundrymen, Calcutta SHRI R. P. VARSHNEY ( Alternate )

SHRI K. A. GANDHI HMT Ltd, Bangalore SHRI H. S. RAMACEANDRA ( AIternafe I ) SHRI A. SHANTHARAM ( Altcrnatc II ) SHRI P. P. CHOPRA ( Akmate III )

SHRI R. M. GORANE Kirloskar Brothers, Kirloskarvadi SHRI D. M. DABAK (Alternate)

SHRI H. N. SINoH Indian Iron & Steel Co Ltd, Calcutta SHRI R. N. MUKHERJEE (Al&nuts )

SHRI P. L. JAIN National Institute of Foundry & Forge Technology, Ranchi

SHRI K. KIEHORE ( Akvnatc ) SHRI L. M. JOSHI Delhi Cloth & General Mills Co Ltd, Delhi SHRI S. S. KHOSLA Directorate General of Technical Development,

New Delhi SHRI S. V. BOPARDIKAR ( Alternate )

( Contmmf on pug6 2 )

(Q CapTight 1986

INDIAN STANDARDS INSTITUTION

This publication is protected under the It&an Copyrigti Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the raid Act.

16 : 6447 - 1986

( Conlinucdfiom page 1 )

Members Representing DR R. LALITR KUMAR SERI Y. C. MISHRA

Indian Institute of Technology, Kharagpur Cooper Engineering Ltd, Satara

SHRI A. K. BANERJEE (Alternat ) SHRI M. L. NAVARE Versatile Equipments Private Ltd, Kolhapur

SHRI SUBHASH KWLKARNI (Alternate ) DR G. N. RAO National Metallurgical Laboratory ( CSIR ),

REPRESENT,\TIVE SHRI N. R. N~QA~AJ RAO

Jamshedpur - ,.

M. M. Suri & Associates I P ) Ltd. New Delhi Steel Authority of India Ltd ( Bhifai Steel Plant ),

Bhilai SHRI R. R. SARAN ( Alternate )

SHRI T. S. VENKOBA RAO Ennore Foundries Ltd, Madras SXIRI M. P. PONNUSWA~~Y ( Ahrnate )

SHHI R.N. SAHA Directorate General of Supplies & Disposals, New Delhi

SXRI DARBARA SINOH ( Altcrnatc ) PROT K. S. SREENIVASA MURTIXY

PROE S. SESHAN ( Alternate ) Indian Institute of Science, Bangalore

SENIOR CHXXIST 8s METALLUROIST, Ministry of Railways CLW, CRITTARANJAN

CHEMIST & METALLURQJST, ( SF ), CLW, CHITTARANJAN ( Alternate I )

CHEMIST & METALLURQIST, NF RLY, NEW BONQAI~AON ( Alternate II )

SHRI V. N. SUNDERRAJAN M. N. Dastur & Co Ltd, Calcutta SHEII S. THIYARlRAJAN Sourthern Alloy Foundries Pvt Ltd, Madras

SHRI A. THAN~AVELU ( Alternate ) SHRI THOMAS PAUL Pioneer Equipment Co Pvt Ltd, Vadodara

SHRI C. BHASKARAN ( Alternate ) SERI V. N. UPADRAYAYA Federation of Engineering Industries of India,

New Delhi SHRI H. L, BHARDWAJ ( Alfrrnate )

SHRI NAND LAL VARMA International Steel Fabricators, Bombay SHRI RAJESH KUMAR VARMA ( Alternate )

&RI K. RAQHAVENDRAN, Director General, IS1 (Ex-ojicio Member) Director ( Strut & Met )

Secretaries SHRI A. B. TEWARI

Deputy Director ( Metals ), ISI SHRI S. K. PANJA

Assistant Director ( Metals ), IS1

Foundry Ancillary Equipment Subcommittee, SMDC 1’7 : 2

CO?WellCr

SHRI P. L. JAIN National Institute of Foundry & Forge Technology, Ranchi

Members

SERI J. N. BBAKTA

SHRI D. M. BIRADAR

Development Commissioner ( Small Scale Industries ), New Delhi

The Institute of Indian Foundrymen, Calcutta

( Continued on page 9 )

2

.*. .j

I I

IS : 6447 - 1986

Indian Standard SPECIFICATION FOR

VENT WIRES FOR USE IN FOUNDRIES

( First Revision )

0. FOREWORD

0.1 This Indian Standard ( First Revision) was adopted by the Indian Standards Institution on 27 January 1986, after the draft finalized by the Foundry Sectional Committee had been approved by the Structural and Metals Division Council.

0.2 This standard was first published in 1971. While reviewing this standard in the light of the experience gained during these years, the Sectional Committee decided to revise it with the following main modifications:

a) Material requirement has been modified, and

b) The hardness requirement has been incorporated.

0.3 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2- 1960 ‘. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

1. SCOPE

1.1 This standard covers the requirements for vent wires, used for making vent holes in foundry moulds.

2. SUPPLY OF MATERIAL

2.1 General requirements relating to the supply or vent wires shall be as laid down in IS : 1918-19667.

*Rules for rounding off numerical values ( rcoiscd). iMethods of physical tesrs for foundry sands,

3

IS : 6447 - 1986

3. TYPE OF VENT WIRES

3.1 Vent wires shall be of the following four types as given in Tables 1 and 2.

a) Long vent wires .- Type A, Type B and Type C.

b) Short vent wires--- Type D.

4. DIMENSIONS AND TOLERANCES

4.1 Dimensions of long vent wires ( Types A to C ) shall bc as given in Table 1 and short vent wires ( Type D ) shall be as given in Table 2.

4.2 Tolerances on the dimensions as specified in Tables 1 and 2 shall meet the requirements of coarse class of IS : 2102 ( Part 1 )-1980*.

5. DESIGNATION

5.1 Types A, B, C and D vent wires shall be designated by their overall length, for example:

4

b)

4

Vent wire of Type A, with overall length of 500 mm shall be designated by ‘Vent wire A-500 IS : 6447’;

Vent wire of Type B, with overall length of 630 mm shall be designated by ‘Vent wire B-630 IS : 6447’; and

Vent wire of Type D, with overall length of 200 mm shall be designated by ‘Vent wire D- 200 IS : 6447’.

5.2 Designation of Components

5.2.1 Handles and needles of vent wires shall also be designated separately as given below:

Description

Needle Type A with length 392 mm and dia 5 mm

Designation

Needle ‘- A 392, IS : 6447

Handle Type A with thickness 16 mm Handle - A 5.5, IS : 6447 and bore 5.5 mm

Needle Type D with length 165 mm and dia 4 mm.

Needle - D 165, IS : 6447

*General tolerances for dimensions and forms and position: Part I General tolerances for linear and angular dimensions ( second revision ).

4

TABLE 1 DIMENSIONS OF TYPE A, TYPE B AND TYPE C- LONG VENT WIRES

All dimensions in millimetres.

r L---fG---/ I

- 1 --- --- f-

I TYPE A

TYPE C

DETAILS OF NEEDLES

DETAILS OF HANDLE Designation of vent wire type ‘A’ with overall length of 500 mm: ‘Vent Wire A-500 IS : 6447’.

- L L1 1 d 71 4 h I, w D 400 392 32 5 55 5 10 * --

16 8 500 492 50 6 65 6 10 E

rl 630 620 60 8 8.5 6

15 I

20 10 t;r

800 790 100 10 IO.5 IO 20 4

-

As in the Original Standard, this Page is Intentionally Left Blank

L- .._

IS : 6447 - 1986

TABLE 2 DIMENSIONS OF TYPE D - SHORT VENT WIRE

All dimensions in millimetres.

\

PLACE FOR MARKING

DETALLS OF NEEDLE, TYPE D 4-J

Designation of short vent wire type ‘D’ with overall length of 200mm: ‘Vent Wire D-200 IS : 6447’.

L Ll 1 d

200 165 25 4 250 215 32 5 320 285 40 6

6. MATERIAL

6.1 Needle -Vent wire needle shall be manufactured by forging medium carbon steel conforming to class 5 of IS : 1875-l 978*.

6.2 Handle - Handle of Type A vent wire shall be manufactured from mild steel as per IS : 226-1975t and handles of Type B shall be manufactured from good quality of wood or plastics.

7. HARDNESS

7.1 The hardness of the needle of the vent wires after heat treatment ( hardened and tempered) shall be in the range of 233-258 HV.

*Specification for carbon steel billets, blooms, reuision ) .

slabs and bars for forgings (fiwth

tspecification for structural steel ( standard quality ) (fifrh revision).

7

IS : 6447 - 1986

8. PACKING

8.1 Each vent wire shall be coated with a thin film of rust preventive oil and wrapped separately in moisture proof paper.

8.2 Vent wires of same type and size shall be packed in wooden boxes weighing not more than 50 kg overall. In case of wood/plastic handles, the same shall be coated with a suitable laquer.

9. MARKING

9.1 Each vent wire shall be marked clearly with the manufacturer’s name or trade-mark, manufacturing date and the designation of the tool ( see 5).

9.1.1 Each box shall also be marked with the information given under 9.1.

9.2 It may also be marked with the IS1 Certification Mark.

NOTE - The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution ( Certification Marks ) Act and the Rules and Regulations made thereunder. The IS1 Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

8

___ _ _~._...__ _.--.-.--- .- - _. _...

IS : 6447 - 1986

( Confinucdfrom page 2 )

Members

SHRI T. K. CHANDA

SHRI I. S. SA~U ( Akcrnafc ) SHRI D. K. DUTTA

Rcprcmiting

Tata Engineering & Locomotive Co Ltd, Jamshedpur

Ordnance Factory ( Ministry of Defence ), Muradnagar

SRRI 0. P. KHU~ANA ( Alternate ) SHRI G. G. LONDHE Premier Automobile Ltd, Bombay SHRI M. L. NAVA~E Versatile Equipments Pvt Ltd, Kolhapur

SRRI SUBHASH KULKARNI ( Altrrnatr ) SHRI S. P. NATARAJAN Ennore Foundries Ltd, Madras

SHRI V. S. KANDASWAMY ( Alternate ) SHRI P. K. PANDA National Institute of Foundry & Forge

Technology, Ranchi SHRI D. PANDURAMGAX Setty Associates Pvt Ltd, Madras

SR~I P. RAJEHRXARAN ( Alltrnn)s ) SHRI TEOMAS PAUL Pioneer Equipment Co Pvt Ltd, Vadodara

SHRI C. BHAEXARAN ( Aftarnatc)

.

9

r---...--____

INTERNATIONAL SYSTEM OF UNITS ( SI UNITS)

QUANTITY Length

Mass

Time

Electric current

Thermodynamic temperature

Luminous intensity

Amount of substance

S upplementrry Units

QUANTITY

Plane angle

Solid angle

Derived Units

QUANTlTv

Force Energy

Power

FluB

Flux density

Frequency

Electric conductance

Electromotive force

Pressure, *tress

UNIT

metre

kilogram

second

ampere

kelvin

candela

mole

UNIT

radian

steradian

UNlT

newton joule

watt

weber

terla

hertz

siemens

volt

Pascal

SYMBOL

C 8

A

K

cd mol

SYMBOL

rad

sr

SYMBOL

J”

W

Wb

T

H2 S

V

Pa

DB~ZBITZOB

IN - 1 kg.m/ss

1J - 1 N.m

1W - lJ/s 1 Wb- 1V.s

1T - 1 Wb/ms

1 Hz = 1 c/s (s-r)

1S - 1 A/V

1 V = 1 W/A

1 Pa - 1 N/m’