CN204022874U - Diesel engine inlet and outlet valve seat induction heater - Google Patents
Diesel engine inlet and outlet valve seat induction heater Download PDFInfo
- Publication number
- CN204022874U CN204022874U CN201420416492.8U CN201420416492U CN204022874U CN 204022874 U CN204022874 U CN 204022874U CN 201420416492 U CN201420416492 U CN 201420416492U CN 204022874 U CN204022874 U CN 204022874U
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- China
- Prior art keywords
- induction heater
- pair
- shank
- outlet valve
- valve seat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a kind of diesel engine inlet and outlet valve seat induction heater, comprise that induction heater body, a pair of induction heater shank and a pair of shank connect piece; Induction heater body comprises circular head and pair of parallel bar, and a pair of induction heater shank one end soldered is with it inserted respectively in described pair of parallel bar outer end, and to connect piece soldered with a pair of shank respectively for a pair of induction heater shank the other end; Circular head downside is molded into outside inclination flat-bottom structure.The utility model is simple in structure, low cost of manufacture, and circular head downside is molded into outside inclination flat-bottom structure and makes inlet and outlet valve seat lower surface and upper face reach identical heats, has significantly improved the surface heat Disposal quality of inlet and outlet valve seats.
Description
Technical field
The utility model relates to a kind of diesel engine part surface induction well heater, relates in particular to a kind of ultrasonic frequency equipment that adopts diesel engine intake and exhaust valve seat is carried out to surface induction well heater, belongs to surface heat processing technology field.
Background technology
Diesel engine intake valve and exhaust valve seat (hereinafter to be referred as inlet and outlet valve seat) are one of strength members of diesel engine, certain diesel engine inlet and outlet valve seat as shown in Figure 1, it is shaped as tubular, and a circle flange 10 is radially extended in bottom, and its endoporus bottom is radially expanded into tubaeform 20.Inlet and outlet valve seat is pressed on cylinder head detonation front by special tooling, when diesel engine work, through the frequent lifting of inlet and outlet valve seat air valve guide rod, inlet valve seat or exhaust valve seat take for a long time epidemic disease under High Temperature High Pressure bad working environments, very high to requirements such as its wear resistance, high thermal resistance and erosion resistances, its quality directly has influence on Diesel Engine Complete Machine performance and used life.
Existing inlet and outlet valve seat induction heater shape is unanimous between the higher and lower levels, because heat-up time is shorter, the temperature at tubaeform 20 positions of the flange 10 of inlet valve seat or exhaust valve seat bottom and endoporus bottom is difficult to reach requirement, and quenching effect is poor, and its surface hardness is difficult to up to standard.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of diesel engine inlet and outlet valve seat induction heater, to obtain required surface hardness and depth of hardening zone.
The utility model is achieved by the following technical programs:
A kind of diesel engine inlet and outlet valve seat induction heater, comprise that induction heater body, a pair of induction heater shank and a pair of shank connect piece, described induction heater body and a pair of induction heater shank all adopt copper pipe to make, and a pair of shank connects piece and adopts red copper material to make; Induction heater body comprises the circular head of an end opening, from the outward extending pair of parallel bar of circular head opening end, after the horizontal broadening of described pair of parallel bar outer end camber, insert respectively a pair of induction heater shank one end soldered with it, a pair of induction heater shank the other end connects piece soldered with it through a pair of shank respectively; Described circular head downside is molded into outside inclination flat-bottom structure.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid diesel engine inlet and outlet valve seat induction heater, the copper pipe that wherein said induction heater shank adopts diameter to be greater than parallel rod diameter is made.
Inlet and outlet valve seat induction heater of the present utility model is simple in structure, low cost of manufacture, circular head downside is molded into outside inclination flat-bottom structure and makes inlet and outlet valve seat lower surface and upper face reach identical heats, thereby make surface hardness and the depth of hardening zone at the upper and lower position of inlet and outlet valve seat in full accord, depth of hardening zone reaches 3-4mm, hardness reaches HRc43-47, has significantly improved the surface heat Disposal quality of inlet and outlet valve seats.
Advantage and disadvantage of the present utility model, will carry out figure explanation by the non-limitative illustration of preferred embodiment below, and these embodiment, only provide as an example with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of inlet and outlet valve seat;
Fig. 2 is induction heater front view of the present utility model;
Fig. 3 is the vertical view of Fig. 2.
Embodiment
Be the embodiment of certain diesel engine inlet and outlet valve seat induction heater quenching technology for surfaces of 42CrMo steel below in conjunction with accompanying drawing and material, the utility model is described in further detail.This inlet and outlet valve seat quench treatment requires surface hardness HRC43-47, and depth of hardening zone is 3-4mm.
As shown in Figures 2 and 3, the diesel engine inlet and outlet valve seat induction heater of the present embodiment comprises that induction heater body 1, a pair of induction heater shank 2 and a pair of shank connect piece 3, induction heater body 1 and a pair of induction heater shank 2 all adopt copper pipe to make, and a pair of shank connects piece 3 and adopts red copper material to make.The pair of parallel bar 12 that induction heater body 1 comprises the circular head 11 of an end opening, extends to the right from circular head 11 opening ends, the described pair of parallel bar horizontal broadening of 12 outer end camber is also inserted respectively a pair of induction heater shank 2 one end soldered with it after twice bending, induction heater body 1 adopts Φ 8mm copper pipe to make, a pair of induction heater shank 2 all adopts Φ 12mm copper pipe to make, and is convenient to pair of parallel bar 12 and inserts respectively in a pair of induction heater shank 2 left ends.A pair of induction heater shank 2 right-hand members connect piece 3 soldered with it through a pair of shank respectively.Answer circle flange 10 and endoporus thereof a bottom tubaeform 20 of heater base for adapt sense, circular head 11 downsides are molded into outside inclination flat-bottom structure, reach identical heats to reach inlet and outlet valve seat lower surface and upper face.
The diesel engine inlet and outlet valve base surface quenching process of the present embodiment is as follows:
1) diesel engine inlet and outlet valve base surface induction heating
A pair of induction heater rear end shank is connect to piece 3 to be installed on ultrasonic frequency power unit, then diesel engine inlet and outlet valve seat is placed on workplatform, within being positioned at induction heater, adjust the gap between diesel engine inlet and outlet valve base and induction heater, this gap is 18.3-18.5mm, and power uses 67% to be 40-44Kw.Ultrasonic frequency gear is allocated to the required 40000Hz frequency of this diesel engine valve seat, and is adjusted to the gear of power demand; Connect water coolant, be 8s the heat-up time that switches on power, and when Heating temperature shows pink 830-900 DEG C to diesel engine valve base surface, takes out diesel engine valve seat.
2) quench
By heating after inlet and outlet valve seat oil cooling to room temperature;
3) tempering
Tempering temperature is 400 ± 20 DEG C, is incubated the air cooling of coming out of the stove after 2 hours.
Adopt the surface hardening layer depth of two the present embodiment of method for quenching surface of the present utility model to reach respectively 3.4mm and 3.5mm, surface hardness reaches respectively HRc45.5 and HRc46, meets product technology requirement completely.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (2)
1. a diesel engine inlet and outlet valve seat induction heater, it is characterized in that, comprise that induction heater body, a pair of induction heater shank and a pair of shank connect piece, described induction heater body and a pair of induction heater shank all adopt copper pipe to make, and a pair of shank connects piece and adopts red copper material to make; Induction heater body comprises the circular head of an end opening, from the outward extending pair of parallel bar of circular head opening end, after the horizontal broadening of described pair of parallel bar outer end camber bending, insert respectively a pair of induction heater shank one end soldered with it, a pair of induction heater shank the other end connects piece soldered with it through a pair of shank respectively; Described circular head downside is molded into outside inclination flat-bottom structure.
2. diesel engine inlet and outlet valve seat induction heater as claimed in claim 1, is characterized in that, the copper pipe that described induction heater shank adopts diameter to be greater than parallel rod diameter is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416492.8U CN204022874U (en) | 2014-07-28 | 2014-07-28 | Diesel engine inlet and outlet valve seat induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416492.8U CN204022874U (en) | 2014-07-28 | 2014-07-28 | Diesel engine inlet and outlet valve seat induction heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204022874U true CN204022874U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420416492.8U Active CN204022874U (en) | 2014-07-28 | 2014-07-28 | Diesel engine inlet and outlet valve seat induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204022874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087726A (en) * | 2014-07-28 | 2014-10-08 | 中船动力有限公司 | Induction heater for inlet valve seat and exhaust valve seat of diesel engine and surface quenching method |
-
2014
- 2014-07-28 CN CN201420416492.8U patent/CN204022874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087726A (en) * | 2014-07-28 | 2014-10-08 | 中船动力有限公司 | Induction heater for inlet valve seat and exhaust valve seat of diesel engine and surface quenching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |