GB790003A - Improvements in or relating to grinding and polishing tools - Google Patents

Improvements in or relating to grinding and polishing tools

Info

Publication number
GB790003A
GB790003A GB1767855A GB1767855A GB790003A GB 790003 A GB790003 A GB 790003A GB 1767855 A GB1767855 A GB 1767855A GB 1767855 A GB1767855 A GB 1767855A GB 790003 A GB790003 A GB 790003A
Authority
GB
United Kingdom
Prior art keywords
abrasive
grains
die
grinding
ram
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1767855A
Inventor
Werner Osenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1767855A priority Critical patent/GB790003A/en
Publication of GB790003A publication Critical patent/GB790003A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0017—Deairing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B29C70/64—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres the filler influencing the surface characteristics of the material, e.g. by concentrating near the surface or by incorporating in the surface by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/736—Grinding or polishing equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

790,003. Moulding grinding and polishing tools. BISTERFELD, E., [trading as BISTERFELD & STOLTING]. June 18, 1955, No. 17678/55. Class 87(2). [Also in Group XXIII] A grinding or polishing tool is made by filling mould with abrasive grains, compacting the grains by vibration, subjecting the compacted grains to pressure to form a rigid skeleton and, while maintaining the grains under pressure, injecting thermoplastic or thermosetting material into the mould so as to partly or wholly fill the spaces in the skeleton. In Fig. 2 abrasive grains 1 are filled into a die 5 having a base plate 8 through which projects a spindle 9 that is to form part of the abrasive article, then the grains are vibrated and subsequently compressed by a ram 7, and then synthetic material is injected into the die through a passage 10 in the ram. During injection, pressure is maintained by the ram. Air escapes from the die through passages 11, 11<SP>1</SP> in the base. In Fig. 5 a perforated steel disc 14 is faced with abrasive grains, the injection taking place through two passages 10 in the ram and runners 10<SP>1</SP>. Fig. 6 shows the making of a tanged file the injection being end-on. The making of spheres and bevel wheels is described. Fig. 11 shows a wheel having zones of fine and coarse abrasive grains. Fig. 12 illustrates the making of a cylindrical tool 14 having abrasive strips 6<SP>1</SP>, 6<SP>11</SP> moulded. into grooves in the surface thereof and anchored therein by inserts 16<SP>1</SP>, 16<SP>11</SP>. Strips 4, Fig. 1d, may be dissolved or etched away after moulding has been completed (to leave recesses for grinding dust). In general : Air may be exhausted from the die. Porous grinding tools may be made by forcing gas or liquid through the die after injection of the synthetic material, the gas &c. washing out part of the material: or sucking out part of the material : or part of the material may be removed by centrifugal action : or surface porosity may be achieved by mixing granular ceramic material or glass with the abrasive material before it is filled into the die, this granular material falling out during use. Non-metallic fabrics may be embedded in the abrasive material. Spindles &c. to be embedded in the articles may be initially coated with a mixture of abrasive and synthetic material to assist adhesion : or may be roughened, contoured &c. for that purpose. The dies used may be " lost " moulds, made of porcelain, glass, wood or rubber, reinforced during moulding with a steel jacket. The dies may be coated with liquid paraffin release agent.
GB1767855A 1955-06-18 1955-06-18 Improvements in or relating to grinding and polishing tools Expired GB790003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1767855A GB790003A (en) 1955-06-18 1955-06-18 Improvements in or relating to grinding and polishing tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1767855A GB790003A (en) 1955-06-18 1955-06-18 Improvements in or relating to grinding and polishing tools

Publications (1)

Publication Number Publication Date
GB790003A true GB790003A (en) 1958-01-29

Family

ID=10099297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1767855A Expired GB790003A (en) 1955-06-18 1955-06-18 Improvements in or relating to grinding and polishing tools

Country Status (1)

Country Link
GB (1) GB790003A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8137423B2 (en) 2004-08-20 2012-03-20 3M Innovative Properties Company Method of making abrasive article
ITRM20120115A1 (en) * 2012-03-23 2013-09-24 Eg 07 Di Greco Ercole PROCESS AND APPARATUS FOR INTERSTIAL INFILTRATION.
US8740675B2 (en) 2009-12-25 2014-06-03 3M Innovative Properties Company Method of making a grinding disk and a grinding disk
CN103962974A (en) * 2013-01-31 2014-08-06 盖茨优霓塔传动系统(苏州)有限公司 Grinding wheel
US9764449B2 (en) 2014-05-29 2017-09-19 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
WO2021018504A1 (en) 2019-07-26 2021-02-04 Danmarks Tekniske Universitet Polishing tool for high aspect ratio profiles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8137423B2 (en) 2004-08-20 2012-03-20 3M Innovative Properties Company Method of making abrasive article
US8740675B2 (en) 2009-12-25 2014-06-03 3M Innovative Properties Company Method of making a grinding disk and a grinding disk
ITRM20120115A1 (en) * 2012-03-23 2013-09-24 Eg 07 Di Greco Ercole PROCESS AND APPARATUS FOR INTERSTIAL INFILTRATION.
CN103962974A (en) * 2013-01-31 2014-08-06 盖茨优霓塔传动系统(苏州)有限公司 Grinding wheel
US9764449B2 (en) 2014-05-29 2017-09-19 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
US10213903B2 (en) 2014-05-29 2019-02-26 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
WO2021018504A1 (en) 2019-07-26 2021-02-04 Danmarks Tekniske Universitet Polishing tool for high aspect ratio profiles

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