GB576130A - Grinding wheels and other solid abrasive bodies and method of making the same - Google Patents

Grinding wheels and other solid abrasive bodies and method of making the same

Info

Publication number
GB576130A
GB576130A GB15425/42A GB1542542A GB576130A GB 576130 A GB576130 A GB 576130A GB 15425/42 A GB15425/42 A GB 15425/42A GB 1542542 A GB1542542 A GB 1542542A GB 576130 A GB576130 A GB 576130A
Authority
GB
United Kingdom
Prior art keywords
added
dichloride
formaldehyde
grinding wheels
furfural
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
GB15425/42A
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.)
Norton Grinding Wheel Co Ltd
Original Assignee
Norton Grinding Wheel Co Ltd
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 Norton Grinding Wheel Co Ltd filed Critical Norton Grinding Wheel Co Ltd
Publication of GB576130A publication Critical patent/GB576130A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
    • B24D3/28—Resins or natural or synthetic macromolecular compounds
    • B24D3/285—Reaction products obtained from aldehydes or ketones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Grinding wheels and like abrasive bodies are obtained by wetting a quantity of abrasive grain with a monomeric polyglycol dichloride selected from the di-, tri-, tetra- and pentaglycol dichlorides and stirring into the mixture an aromatic formaldehyde condensate obtained by condensing a primary aromatic amine and formaldehyde in the presence of a strong acid, e.g. phosphoric, spreading the mixture in a mould and pressing and curing at resin curing temperatures. Aromatic amines specified are aniline, toluidines, and diamino diphenyl methane. Acids of equivalent strength to phosphoric are hydrochloric, hydriodic, tri- and di-chlor acetic, maleic, oxalic picric, and sulphuric. Halogenated organic compounds, e.g. polyvinyl chloride, polyvinylidene dichloride, rubber hydrochloride, chlorinated rubber, halogen substituted paraffins, halohydrins, may also be added as described in Specification 538,406. Abrasives specified are alumina, emery, corundum silicon carbide, quartz, glass, garnet or diamonds. Furfural may be added as an additional wetting and plasticising agent. The furfural and the dichloride are stated to give cross-linkages with the benzene rings in the aromatic amine condensate. Fused alumina grit is mixed with dichlor-diethyl ether and anhydrite and aniline-formaldehyde resin are added. The mix is cold moulded at a pressure of 3 tons per sq. inch and is then baked for 8 hours at 100 DEG C.
GB15425/42A 1941-11-01 1942-11-02 Grinding wheels and other solid abrasive bodies and method of making the same Expired GB576130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US576130XA 1941-11-01 1941-11-01

Publications (1)

Publication Number Publication Date
GB576130A true GB576130A (en) 1946-03-20

Family

ID=22011681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15425/42A Expired GB576130A (en) 1941-11-01 1942-11-02 Grinding wheels and other solid abrasive bodies and method of making the same

Country Status (1)

Country Link
GB (1) GB576130A (en)

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