IT1031404B - Procedimento per la produzione di viti o cilindri di plas ticizzazione resistenti al logorio - Google Patents

Procedimento per la produzione di viti o cilindri di plas ticizzazione resistenti al logorio

Info

Publication number
IT1031404B
IT1031404B IT19885/75A IT1988575A IT1031404B IT 1031404 B IT1031404 B IT 1031404B IT 19885/75 A IT19885/75 A IT 19885/75A IT 1988575 A IT1988575 A IT 1988575A IT 1031404 B IT1031404 B IT 1031404B
Authority
IT
Italy
Prior art keywords
ticization
plas
cylinders
screws
wear
Prior art date
Application number
IT19885/75A
Other languages
English (en)
Original Assignee
Hehl Karl
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 Hehl Karl filed Critical Hehl Karl
Application granted granted Critical
Publication of IT1031404B publication Critical patent/IT1031404B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/68—Boronising
    • C23C8/70—Boronising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Articles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
IT19885/75A 1974-02-16 1975-01-31 Procedimento per la produzione di viti o cilindri di plas ticizzazione resistenti al logorio IT1031404B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742407540 DE2407540A1 (de) 1974-02-16 1974-02-16 Verfahren zur herstellung von verschleissfesten plastifizierschnecken oder plastifizierzylindern

Publications (1)

Publication Number Publication Date
IT1031404B true IT1031404B (it) 1979-04-30

Family

ID=5907632

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19885/75A IT1031404B (it) 1974-02-16 1975-01-31 Procedimento per la produzione di viti o cilindri di plas ticizzazione resistenti al logorio

Country Status (8)

Country Link
US (1) US3994750A (it)
JP (1) JPS50115634A (it)
AT (1) AT345873B (it)
DE (1) DE2407540A1 (it)
FR (1) FR2261340B1 (it)
GB (1) GB1493470A (it)
IT (1) IT1031404B (it)
NL (1) NL7500632A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503191A1 (en) * 1981-04-03 1982-10-08 Maschf Augsburg Nuernberg Ag Highly stressed engine component made of steel - is pptn. hardened to obtain tough core and is boronised on surface
US4389439A (en) * 1981-07-02 1983-06-21 Turbine Metal Technology, Inc. Erosion resistant tubular apparatus for handling slurries
FI862725A0 (fi) * 1986-06-26 1986-06-26 Ahlstroem Oy Slitfast haolplatta.
US5242741A (en) * 1989-09-08 1993-09-07 Taiho Kogyo Co., Ltd. Boronized sliding material and method for producing the same
EP0438268A1 (en) * 1990-01-18 1991-07-24 Taiho Kogyo Co., Ltd. Boronized sliding material having high strength and method for producing the same
CN112962051A (zh) * 2021-01-29 2021-06-15 安徽合力股份有限公司合肥铸锻厂 奥氏体不锈钢的渗硼方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325313A (en) * 1952-07-11 1967-06-13 Onera (Off Nat Aerospatiale) Heat treatment of metals
US2921877A (en) * 1958-03-13 1960-01-19 David Craven Process of chromizing air hardening tool steel
US3222228A (en) * 1962-06-28 1965-12-07 Crucible Steel Co America Method of boronizing steel
US3567527A (en) * 1968-12-16 1971-03-02 Maxwell Pevar Metallurgical process and product
DE2126379C3 (de) * 1971-05-27 1979-09-06 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Verfahren zum Borieren von Metallen, insbesondere von Stahl

Also Published As

Publication number Publication date
GB1493470A (en) 1977-11-30
DE2407540A1 (de) 1975-09-04
NL7500632A (nl) 1975-08-19
JPS50115634A (it) 1975-09-10
AT345873B (de) 1978-10-10
FR2261340B1 (it) 1978-07-13
FR2261340A1 (it) 1975-09-12
ATA32975A (de) 1978-02-15
US3994750A (en) 1976-11-30

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