CN108431451A - The method of the austenitizing and/or carbonization of the steel lateral direction element of transmission belt for contiuously variable transmission - Google Patents
The method of the austenitizing and/or carbonization of the steel lateral direction element of transmission belt for contiuously variable transmission Download PDFInfo
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- CN108431451A CN108431451A CN201680077377.4A CN201680077377A CN108431451A CN 108431451 A CN108431451 A CN 108431451A CN 201680077377 A CN201680077377 A CN 201680077377A CN 108431451 A CN108431451 A CN 108431451A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010959 steel Substances 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 title claims description 31
- 238000003763 carbonization Methods 0.000 title 1
- 238000010791 quenching Methods 0.000 claims abstract description 30
- 230000000171 quenching effect Effects 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of by the lateral direction element being formed from steel (32) quenching hardening (I, II, III) method, make lateral direction element (32) austenitizing (I) first, then (II) is quenched, is finally tempered (III).According to the present invention, hundreds to thousands lateral direction element (72) is deposited into heat treatment basket basket (73), the austenitizing (I) simultaneously under the low pressure of 1 10mbar at high temperature in furnace chamber (60).
Description
Technical field
This disclosure relates to which a kind of method for manufacturing steel lateral direction element, is heat-treated horizontal more particularly to a kind of batch-type
To the method for element, the lateral direction element is applied in a manner of substantially continuous row in transmission belt, to fill transmission belt
Annular, i.e. cyclic annular load-bearing part perimeter.These lateral direction elements and transmission belt and their commonly used contiuously variable transmissions
It is well known in the art, such as knows respectively from European Patent Publication EP-A-0626526 and EP-A-1167829.
Background technology
In the transmission, the lateral direction element of transmission belt and two belt wheel CONTACT WITH FRICTIONs, and can be laterally first by first
Part applies thrust to the second adjacent lateral direction element, this thrust is applied on third lateral direction element simultaneously by second lateral direction element
And so on transmit the driving force from a transmission pulley.The annular load-bearing part of transmission belt is mainly used in lateral direction element
Constrained in the belt wheel and track between the pulley and guiding lateral direction element.In general, annular stretching element by
Two groups of mutually nested, i.e. radially stacked flexible metal ring compositions.In general, lateral direction element limits two slots respectively, the two
Slot is respectively towards the respective transversal side opening of respective transversal element, and one of corresponding one in two ring groups of receiving respectively
Point.The corresponding contact surface being additionally provided on each cross side of lateral direction element in two contact surfaces, the contact surface with
The substantially matched angle mutual orientation of angle defined by between two conical discs relative to each other of each transmission pulley.
The design of known lateral direction element in operation, i.e. in the rotary course of transmission belt for example due to lateral direction element
Interval by pulley sheaves and between pulley sheaves be compressed axially and adjacent transverse element between the thrust that changes and answering for generating
Prodigious optimization is obtained in terms of power level and stress amplitude.In addition, the manufacturing process of lateral direction element largely mesh thus
And optimize.For example, lateral direction element is heat-treated by quenching hardening and is hardened, quenching hardening heat treatment includes three many institutes
The known stage：The austenitizing in heat-soak treatment gas (" heat absorption type gas (endogas) "), in oil bath quenching and
Air tempering.Since single transmission belt has included hundreds of lateral direction elements, so the most realistic of quenching hardening heat treatment can
Capable and/or commercial effective arrangement must provide the processing of high-volume lateral direction element.In fact, such as European Patent Publication
Discussed in EP-A-1531284, hundreds to thousands lateral direction element together, is i.e. heat-treated in bulk, this in batches with
Multiple-level stack or stacking are accommodated in heat treatment basket basket.
Processing --- especially compared with the independent processing of lateral direction element --- of latter type is limited in that, some
Lateral direction element is subjected to different from other lateral direction elements according to it relative to the corresponding position of other lateral direction elements in the batch
Heat treatment condition.For example, when a pile lateral direction element is placed in furnace chamber, constituting those of heap outside element will be than in the middle part of heap
Element much more quickly heated.Thus, after quenching hardening, between some characteristics of lateral direction element, such as its contact surface
Accurate angle, they flatness or its accurate microstructure between them may slight variation.Although this geometry
It is only small and be actually substantially acceptable under current technical background with metallurgy variation, but from overall process
From the viewpoint of control and product quality, it is preferred so that technique and homogeneity of product is maximized.
Invention content
It can by the improvement of the known quenching hardening heat treatment to being limited in hereinafter claim 1 according to the disclosure
Advantageously improve this process consistency of the quenching hardening heat treatment of lateral direction element and obtained homogeneity of product.Especially
According to the disclosure, austenitization stage carries out in furnace chamber under the pressure reduced relative to environmental pressure.Particularly, according to this
It is open, apply only 10mbar or smaller pressure in austenitization stage.
Preferably, remaining processing atmosphere in this low pressure austenitization passes through feed hydrocarbon gas (example
Such as natural gas, propane or acetylene) and generate, cracking at a temperature of which applies in austenitizing, and because
This provides the source of carbon advantageously to make the superficial layer of lateral direction element be enriched with the carbon decomposed.It is thereby achieved that the table of lateral direction element
The slight carburizing of face layer, to especially be mixed with the processing gas of nitrogen, hydrogen and the natural gas routinely applied under atmospheric pressure
It closes object to compare, some mechanical performances of lateral direction element, such as case hardness is improved in the transmission belt application aspect of lateral direction element
And/or wearability.Obtain particularly preferred result in this respect by acetylene.
In another more detailed embodiment being heat-treated according to the quenching hardening of the disclosure, in the austenitization stage phase
Between, processing gas stream is introduced into furnace chamber.Meanwhile processing gas can extract out from furnace chamber, to keep the reduction therein
Pressure.According to the disclosure, pass through this flowing of processing gas, it can be appreciated that processing atmosphere has throughout austenitizing furnace chamber
Mix sharply and/or pass through lateral direction element to stack particularly well, at least with no this flowing the case where compared with reach raising
Degree.In addition, according to the disclosure, processing gas can be intermittently fed into furnace chamber, for example, respectively with the short pulse of 100mbar
It is introduced into, rather than is continuously introduced into 10mbar or smaller, thus, in the carbon enrichment side needed for the surface of lateral direction element
Face, described pass through can further strengthen and/or can most preferably be controlled.
According to the quenching hardening of the disclosure heat treatment austenitization stage above-mentioned setting ideally with gas quenching phase
Combination, i.e., it is combined with the lateral direction element by air-flow cooling austenitizing.This gas quenching is industrially well-known
, but it is only for the workpiece that cooling/quenching is single or at least individually arranges.However, according to the disclosure, gas quenching
It has successfully been applied in combination with the lateral direction element being stacked with now.Particularly, according to the disclosure, lateral direction element herein by
It is stacked in basket basket and is conveyed by basket basket, and quenching gas is made to flow through a basket basket hole, and (subsequent) exists relative to gravity direction
It is stacked by lateral direction element in upwardly direction.More particularly, the flowing of quenching gas is adjusted so that each lateral direction element is thus
It is lifted, however, only partially and/or being only instantaneously lifted without being blown out from basket basket.In this way, succeeded
Ground processing has quenched 10 times of a pile lateral direction element that (stacking) height is single transverse element thickness, but has further increased
It is also feasible to add stack height, this stack height is for example made to double to seem.
Description of the drawings
Principle and feature and its proposition of novel lateral direction element discussed above will be furtherd elucidate in the accompanying drawings now
Manufacturing method, in the accompanying drawings：
Fig. 1 provides tool schematically showing there are two the well-known contiuously variable transmission of belt wheel and a transmission belt
Example；
Fig. 2 provides the sectional view of the known drive belt including steel lateral direction element and stretching element schematically shown；
It is hard that Fig. 3 schematically shows the tradition quenching applied as a part for the integral manufacturing method of lateral direction element
Change the three phases of heat treatment；And
Fig. 4 schematically shows the three phases being heat-treated according to the quenching hardening of the disclosure.
Specific implementation mode
Fig. 1 has shown the power train between engine and driving wheel usually in motor vehicles applied to motor vehicles
Know contiuously variable transmission or the central part of CVT.The speed changer includes two belt wheels 1,2, be each equipped with mounted on pulley shaft 6 or
A pair of of conical pulley disk 4,5 on 7, limits generally V-shaped circumferential pulley groove between pulley sheaves 4,5.Each pair of belt wheel
Disk 4,5, i.e. each 1, at least one of 2 pulley sheaves 4 of belt wheel can be moved axially along the pulley shaft 6,7 of respective pulley 1,2.It passes
Dynamic band 3 is wrapped on belt wheel 1,2, is located in its pulley groove, for transmitting rotary motion and adjoint between pulley shaft 6,7
Torque.
Speed changer also typically includes actuation means, the actuation means during operation the described of each belt wheel 1,2 can axis
Apply the clamping force of axial orientation in the pulley sheaves 4 of movement, which is directed toward another corresponding belt wheel of the belt wheel 1,2
Disk 5, so that transmission belt 3 is clamped between these disks 4,5 of belt wheel 1,2.These clamping forces not only determine transmission belt 3
With the frictional force between respective pulley 1,2, diameter of the conveyer belt 3 at each belt wheel 1,2 between its pulley sheaves 4,5 is also determined
To position R, the radial position R determines the speed, transmission ratio between its pulley shaft 6,7.
Illustrate in greater detail an example of known transmission belt 3 in fig. 2, sectional view is towards its circumferential direction.
Transmission belt 3 is incorporated with into the annular stretching element 31 of two groups of flat flat and thin, i.e. band-like 44 forms of flexible metal ring.Transmission belt
3 further include the multiple lateral direction elements 32 being installed circumferentially on stretching element 31 along stretching element 31.In the specific example
In, every group in ring 44 is contained in by lateral direction element 32 in its lateral side, i.e. in times of the middle section of lateral direction element 32 35
In the corresponding recess portion or slot 33 that are limited on one axial side.Radial direction of the slot 33 of lateral direction element 32 whole relative to transmission belt 3
Direction is located between the bottom part 34 and top section 36 of lateral direction element 32.
On the axial side of the bottom part 34 of lateral direction element 32 be equipped with contact surface 37, for pulley sheaves 4,5
Form CONTACT WITH FRICTION.The contact surface 37 of each lateral direction element 32 with an angle, φ mutual orientation, the angle substantially with V-belt wheel
The angle automatching of groove.Therefore, lateral direction element 32 undertakes the clamping force, so that when input torque is applied to so-called drive
When on movable belt pulley 1, the friction between disk 4,5 and band 3 is so that the rotation of driving pulley 1 is passed by the transmission belt 3 equally rotated
It is sent to so-called driven pulley 2, vice versa.
During the operation of CVT, 32 component of lateral direction element of transmission belt 3 is clamped in the corresponding pairs of belt wheel 1,2 by turns
Pulley sheaves 4,5 between.Although it is this clamp clearly result in lateral direction element 32 bottom part 34 compression, also wherein,
Drawing force is generated in transitional region especially between its bottom part 34 and central part 35.Therefore, lateral direction element 32 is not
Only through frayed, and is also led due to rotation clamping and be subjected to metal fatigue load.
It is well known that lateral direction element 32 is usually manufactured by steel (such as 75Cr1 (DIN1.2003) steel), and as transmission
A part with 3 entire manufacturing process carries out quenching hardening to steel.Traditional quenching hardening processing step includes illustrating in Fig. 3
Three phases I, II and III shown in property.In stage I, by the lateral direction element 32 of a collection of (may be only partially) pre-cut in stove
It is heated to being substantially higher than the temperature of the austenitizing temperature of involved steel in room 60, to provide austenitizing for them
Crystal structure.At this stage in I, lateral direction element 32 is usually placed on carbonaceous gas atmosphere (such as at the nitrogen with methane blended
The form of gas) in, to prevent blocking from the superficial layer depletion to atmosphere of lateral direction element 32.It is in stage II, this batch is laterally first
The quenching of part 32 from austenitizing temperature is quickly cooled to hardening heat, is mainly made of supersaturated martensite crystal with formation
(metastable state) micro-structure.At this stage in II, to the cooling of lateral direction element 32 usually by the way that lateral direction element 32 is immersed oil bath
It is realized in 70, which generally remains in 80 to 120 degrees Celsius of temperature.Later, in stage III, by this batch of transverse direction
Element 32 reheats in furnace chamber 80, to increase its ductility and toughness.The temperature applied in III at this stage is far below the stage
Temperature in I, for example, at about 200 degrees Celsius, to it can in the case of no any protective atmosphere, i.e. in air
It carries out.
According to the disclosure, in terms of the consistency of the geometry of lateral direction element 32 and metallurgical property, traditional quenching hardening heat
Processing can be modified.Shown in Fig. 4 according to an illustrative embodiments of this novel quenching hardening heat treatment of the disclosure
Go out.The austenitization stage I of the novel thermal process of lateral direction element 32 is carried out under the pressure of the reduction less than 10mbar.In order to produce
Raw such low pressure handles atmosphere, and pump 62 is connected to austenitizing furnace chamber 60 so as to therefrom gas bleeding.Even if this low
Pressure, it is much preferred that not making to carry out austenite phase transformation in endothermic atmosphere in air.Therefore, hydrocarbon
The controllable feed source 61 of gas (being herein acetylene gas) is also connected to furnace chamber 60.In addition, this processing atmosphere is preferably not only
Generated when austenitization stage I starts, and during the progress of austenitization stage I by it is controlled, preferably interval
Acetylene feed and partly update.
The hardening phase II of novel thermal process cools down the lateral direction element 32 of austenitizing by means of nitrogen stream 71 immediately, described
Nitrogen stream is cooling preferably with respect to room temperature and is forced through the stacking 72 for the lateral direction element 32 being contained in heat treatment basket basket 73.
Preferably, quenching gaseous stream is in the stacking 72 for being conducted through lateral direction element 32 in an upward direction relative to gravity direction.
Other than all details of whole descriptions of front and attached drawing, present disclosure also relates to and include claim institute
There is feature.Reference numeral in claim does not limit its scope, and is carried as just the non-binding example of individual features
For.According to circumstances, feature claimed can be used alone in given product or during giving, but can also answer wherein
With any combinations of two or more this features.
By the disclosure indicate the present disclosure is not limited to specifically mentioned embodiment and/or examples herein, but further include it
Correction, modification and practical application, especially those skilled in the art those of are contemplated that correction, modification and practical application.
Claims (8)
1. there is annular to stretch for method of the one kind for manufacturing the steel lateral direction element (32) for transmission belt (3), the transmission belt (3)
Element (31) and the multiple lateral direction elements (32) being slidably disposed on annular stretching element (31), wherein pass through following step
Suddenly make lateral direction element (32) quenching hardening：Hundreds of to thousands of a lateral direction elements (32) are placed in heat treatment basket basket (73), by this
A little lateral direction elements (32) are heated to above ferrite/austenite transition temperature (Tp) of corresponding steel and make these lateral direction elements
(32) austenitizing, and then quench these lateral direction elements (32), which is characterized in that the austenitizing of lateral direction element (32)
It is carried out under the ranging from low pressure of 1-10mbar of pressure value in non-oxidizing atmosphere in furnace chamber (60).
2. manufacturing method as described in claim 1, wherein in the austenitization of lateral direction element (32), to furnace chamber
(60) the non-oxidizable processing gas of feed.
3. manufacturing method according to claim 2, wherein the processing gas is by intermittently feed, i.e., with impulse form
Feed.
4. manufacturing method according to claim 2 or 3, wherein in the austenitization of lateral direction element (32), furnace chamber
(60) low pressure in is kept by means of pump (62).
5. manufacturing method according to any one of the preceding claims, wherein atmosphere in furnace chamber (60) or to furnace chamber
(60) processing gas of feed is at least mainly made of acetylene gas.
6. manufacturing method according to any one of the preceding claims, wherein the quenching of lateral direction element (32) is by forcing
Quenching gas flows through heat treatment basket basket (73) to carry out.
7. manufacturing method according to claim 6, wherein the quenching gas is at least mainly made of cooling nitrogen.
8. the manufacturing method described according to claim 6 or 7, wherein force the quenching gas from heat treatment basket basket (73)
Flows are flowed up to top relative to gravity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1041658A NL1041658B1 (en) | 2015-12-30 | 2015-12-30 | Method for austenitizing and/or carburizing steel transverse elements for a drive belt for a continuously variable transmission. |
| NL1041658 | 2015-12-30 | ||
| PCT/EP2016/025193 WO2017114600A1 (en) | 2015-12-30 | 2016-12-29 | Method for austenitizing and/or carburizing steel transverse elements for a drive belt for a continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108431451A true CN108431451A (en) | 2018-08-21 |
| CN108431451B CN108431451B (en) | 2021-09-07 |
Family
ID=56609892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680077377.4A Expired - Fee Related CN108431451B (en) | 2015-12-30 | 2016-12-29 | Method for austenitizing and/or carbonizing a steel transverse element of a drive belt for a continuously variable transmission |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7179615B2 (en) |
| CN (1) | CN108431451B (en) |
| NL (1) | NL1041658B1 (en) |
| WO (1) | WO2017114600A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003027349A3 (en) * | 2001-09-25 | 2003-12-04 | Bosch Gmbh Robert | Method for heat-treating work pieces made of temperature-resistant steels |
| CN1616843A (en) * | 2003-11-14 | 2005-05-18 | 罗伯特·博施有限公司 | Metal push belt, transverse element and manufacturing method |
| CN102844459A (en) * | 2009-08-07 | 2012-12-26 | 世伟洛克公司 | Low temperature carburization under soft vacuum |
| EP2370708B1 (en) * | 2008-11-28 | 2013-01-09 | Robert Bosch GmbH | Method for manufacturing a drive belt, a drive belt and a method for operating a continuously variable transmission incorporating such a drive belt |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4348964B2 (en) * | 2002-04-15 | 2009-10-21 | 日本精工株式会社 | Rolling bearing for belt type continuously variable transmission and method for manufacturing the same |
| JP2005009702A (en) * | 2003-06-17 | 2005-01-13 | Jh Corp | Multi-cell type vacuum heat treating apparatus |
| JP2008266729A (en) * | 2007-04-20 | 2008-11-06 | Honda Motor Co Ltd | Method for heating steel-made workpiece |
| JP6414385B2 (en) * | 2014-02-27 | 2018-10-31 | 新日鐵住金株式会社 | Carburized parts |
-
2015
- 2015-12-30 NL NL1041658A patent/NL1041658B1/en active
-
2016
- 2016-12-29 JP JP2018534567A patent/JP7179615B2/en active Active
- 2016-12-29 WO PCT/EP2016/025193 patent/WO2017114600A1/en active Application Filing
- 2016-12-29 CN CN201680077377.4A patent/CN108431451B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003027349A3 (en) * | 2001-09-25 | 2003-12-04 | Bosch Gmbh Robert | Method for heat-treating work pieces made of temperature-resistant steels |
| CN1616843A (en) * | 2003-11-14 | 2005-05-18 | 罗伯特·博施有限公司 | Metal push belt, transverse element and manufacturing method |
| EP2370708B1 (en) * | 2008-11-28 | 2013-01-09 | Robert Bosch GmbH | Method for manufacturing a drive belt, a drive belt and a method for operating a continuously variable transmission incorporating such a drive belt |
| CN102227576B (en) * | 2008-11-28 | 2015-05-13 | 罗伯特·博世有限公司 | Method for manufacturing drive belt, drive belt and method for operating continuously variable transmission incorporating such drive belt |
| CN102844459A (en) * | 2009-08-07 | 2012-12-26 | 世伟洛克公司 | Low temperature carburization under soft vacuum |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7179615B2 (en) | 2022-11-29 |
| JP2019510871A (en) | 2019-04-18 |
| NL1041658B1 (en) | 2017-07-11 |
| WO2017114600A1 (en) | 2017-07-06 |
| CN108431451B (en) | 2021-09-07 |
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