EP3060692A1 - Method for producing a locally boronized or chromized component - Google Patents
Method for producing a locally boronized or chromized componentInfo
- Publication number
- EP3060692A1 EP3060692A1 EP14777331.1A EP14777331A EP3060692A1 EP 3060692 A1 EP3060692 A1 EP 3060692A1 EP 14777331 A EP14777331 A EP 14777331A EP 3060692 A1 EP3060692 A1 EP 3060692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- temperature
- powder
- locally
- chromium
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 17
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000002344 surface layer Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/60—After-treatment
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/02—Pretreatment of the material to be coated
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
- C23C10/32—Chromising
-
- 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
- C23C8/02—Pretreatment of the material to be coated
-
- 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
-
- 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
- C23C8/80—After-treatment
Definitions
- the invention relates to a method for producing a component from a low-alloyed steel material which is subjected to pressure and wear at least in a locally limited area.
- the components are made of an alloyed material.
- the necessary geometric precision of these components is achieved by a machining hard machining, such as by grinding. If the set by the heat treatment material to stand against wear is not sufficient, the other
- nitriding, carbon and electroplated layers are suitable for this purpose. These layers are usually applied after a microstructural heat treatment.
- High-pressure resistance increases the toughness of the components during further heat treatment. However, at the same time the hardness is reduced.
- the layer thickness produced is usually less than 25 ⁇ " ⁇ limited diffusion of the coating atoms into the base material.
- these thin layers do not provide sufficient protection under local load, such as particle impact.
- a soft basic structure there are dents in the base material.
- the geometric precision must be prepared before the coating, since the
- the component has areas with a relatively high hardness, wear and corrosion resistance as well as areas with a relatively high toughness and ductility.
- the method comprises the following method steps.
- a machining of the component takes place in a non-heat-treated state.
- step b) the component is provided with a
- the cooling of the component to room temperature and the removal of the powder from the surface of the body follows. Due to the powder properties and the coating process, the removal of the powder is particularly easy because it can be blown off, for example, with compressed air.
- a renewed heat treatment of the body takes place for the adjustment of either a martensitic or a bainitic structure at a second temperature, which is lower than the first temperature.
- the second temperature is lower than the first temperature, the generated boundary layer is not changed but only the basic structure.
- a bainitic structure is set, since this compared to the martensitic structure a higher toughness and in the
- a conversion treatment of the martensitic microstructure of at least one hour at a temperature of over 200 ° C is carried out.
- the conversion treatment leads to a considerable increase in toughness.
- a fine machining of the component for the final shaping takes place.
- the grinding is suitable because the removal of very hard material is relatively low.
- the first temperature is at least 850 ° C up to the highest 950 ° C. This temperature causes the boron atoms or the chromium atoms to diffuse into the surface layer of the body.
- the second temperature is at least 840 ° C up to at most 870 ° C. The temperature difference between the first and the second temperature causes the heat treatment has no influence on the borated or chromed edge layer of the component.
- a holding body for an injection system of an internal combustion engine in a first method step, a holding body for an injection system of an internal combustion engine
- valve bodies In the valve bodies, it is in particular the valve seats and in the
- valve body or the holding body are essentially exposed only to a compressive load, so that it is particularly advantageous here if stresses can be reduced by plastic deformation.
- areas with a ductile and tough structure are suitable for this purpose.
- an iron boride or iron chromium layer with a layer thickness of at least 30 ⁇ m up to at most 2 ⁇ m is preferably produced at the surface layer of the component. This, compared to the layer thickness of high-alloy steels, significantly thicker layer is due to a low content of alloying elements of the low alloyed
- the boron atoms when entering the surface layer of the body, essentially form Fe 2 B iron boride with a hardness of 1500 to 2000HV.
- 10006 is used as low-alloyed steel material.
- Figure 1 is a simplified schematic sectional view of a
- FIG. 2 shows a method produced according to the method according to FIG. 1
- the method according to the invention begins with a first method step a, a machining of a valve body 1 made of the material 10006 in a non-heat-treated state.
- the valve body 1 is covered locally with a powder 2 having essentially boron.
- the local coverage with powder is limited to the valve seat. 3
- a heat treatment of the locally covered with the powder 2 valve body 1 at a first temperature of 910 ° C is made. This results in the locally limited diffusion of boron atoms from the powder 2 having boron into the surface layer of the valve body 1, in particular into the surface layer of the surface of the valve seat 3 to be bored. This results in an iron boride layer 5 having a layer thickness of up to ⁇ ⁇ at the surface layer the valve seat 3 generated.
- valve body 1 is cooled to room temperature and the powder is removed.
- valve body 1 is heat treated again to adjust a bainitic structure 4.
- a second temperature is 840 ° C and is thus lower than that required for boriding
- a six hour conversion treatment is carried out at a temperature of 220 ° C to 260 ° C. This increases the toughness of the bainitic structure 4 to a greater degree than the hardness is lowered.
- a fine machining is performed by grinding the valve body 1 for final shaping.
- the valve body 1 produced by the process according to the invention has a tempered and thus tough bainitic basic structure 4.
- the valve seat 3 of the valve body 1 is borated and has a
- Iron boride layer 5 with a layer thickness of up to ⁇ ⁇ on.
- the valve body 1 has a first region, in the valve seat 3, with a high hardness, resistance to wear and corrosion as well as a second region with a relatively high toughness and ductility on the other hand.
- valve body 1 In particular, it is also possible, instead of a valve body 1, other components, in particular for an injection system of a
- Iron chromium layer generated.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310221403 DE102013221403A1 (en) | 2013-10-22 | 2013-10-22 | Process for producing a locally borated or chromated component |
PCT/EP2014/070881 WO2015058932A1 (en) | 2013-10-22 | 2014-09-30 | Method for producing a locally boronized or chromized component |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3060692A1 true EP3060692A1 (en) | 2016-08-31 |
EP3060692B1 EP3060692B1 (en) | 2018-11-14 |
Family
ID=51628138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14777331.1A Active EP3060692B1 (en) | 2013-10-22 | 2014-09-30 | Method for producing a locally boronized or chromized component |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3060692B1 (en) |
DE (1) | DE102013221403A1 (en) |
WO (1) | WO2015058932A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107448254A (en) * | 2017-06-20 | 2017-12-08 | 扬州光辉汽车零部件有限公司 | A kind of boronising wear-resistant coating valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3922038A (en) * | 1973-08-10 | 1975-11-25 | Hughes Tool Co | Wear resistant boronized surfaces and boronizing methods |
GB1569701A (en) * | 1976-03-06 | 1980-06-18 | Ovako Oy | High strength steels |
FR2514032A1 (en) * | 1981-10-06 | 1983-04-08 | Nicolas Guy | CHROME-BASED COATING FOR WEAR-RESISTANT STEEL AND PROCESS FOR PREPARING 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 |
-
2013
- 2013-10-22 DE DE201310221403 patent/DE102013221403A1/en not_active Withdrawn
-
2014
- 2014-09-30 EP EP14777331.1A patent/EP3060692B1/en active Active
- 2014-09-30 WO PCT/EP2014/070881 patent/WO2015058932A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2015058932A1 (en) | 2015-04-30 |
DE102013221403A1 (en) | 2015-04-23 |
EP3060692B1 (en) | 2018-11-14 |
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