CN104046751A

CN104046751A - Application of Cr12MoV sealing ring manufacturing and heat treatment process method of Cr12MoV sealing ring

Info

Publication number: CN104046751A
Application number: CN201410303147.8A
Authority: CN
Inventors: 张春杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2014-09-17
Anticipated expiration: 2034-06-30
Also published as: CN104046751B

Abstract

The application of the invention provides an application of Cr12MoV sealing ring manufacturing and a heat treatment process method of a Cr12MoV sealing ring. The heat treatment process method comprises the following steps: quenching the Cr12MoV sealing ring under the condition that the quenching temperature is 1050 DEG C and the quenching heat-preservation time is 10 minutes; then tempering under the condition that the tempering temperature is 550 DEG C and the tempering heat-preservation time is 2-4 hours to ensure that the hardness of the Cr12MoV sealing ring is 48-50HRC. The Cr12MoV sealing ring provided by the invention, particularly, a pressurizer sealing ring is unchangeable in elastic force, unchangeable in wear-resistant property and stable in appearance in a high-temperature working environment at 450 DEG C, thus ensuring that a material sealing ring maintains excellent sealing properties for a long time in the harsh working environment.

Description

The application that Cr12MoV wear ring is manufactured and its heat-treatment technology method

Technical field

Patent application of the present invention relates to automobile booster wear ring, is specifically related to wear ring manufactured materials.

Background technology

In automobile booster, between wheel shaft and housing, sealing property is important, especially depends on whether wear ring self material property can meet seal request.The elastic dilatation power that automobile booster wear ring produces in compression by its breach reaches sealing function, its sealing function comprises and prevents that lubricating oil from entering the throughput of supercharging blower, stop pneumatic plant air and turbine end gas leaking to enter lubricant reservoir, it is the key that guarantees supercharging blower overall mass.But existing automobile booster wear ring cannot be brought into play effective performance sealing function, and its reason is: wear ring is operated in the severe environment of high-speed friction and high temperature, and its material require meets the technical requirements of heatproof, rub resistance and sealing dimensionally stable.The existing automobile booster wear ring overwhelming majority is 3Cr13 material, though 3Cr13 has good corrosion resistance nature, intensity, heatproof and wear resisting property, but its heat resistance only has 320 ℃, the heatproof index of supercharging blower wear ring is 450 ℃, 3Cr13 wear ring just starts to occur softening sign at 320 ℃, has just lost elasticity while reaching 450 ℃, and its sealing was thoroughly lost efficacy, cause supercharging blower gas leakage, leakage of oil, under this state, wear resistance difficulty is also difficult to maintain.In recent years, people start to select rapid steel to replace 3Cr13 manufacture supercharging blower wear ring, though rapid steel can meet heatproof and wear resisting property, but at the bottom of complex manufacturing, yield rate, causing production cost high, is two～tri-times of 3Cr13 wear ring cost cost, and perishable getting rusty.Two during the last ten years, technician are the applicable material of screening searching manufacture automobile booster wear ring in existing trade mark material all the time, but all suffer from wear-resisting, heat resistance, meet, or cannot select because of selling at exorbitant prices, or cannot select because of other performance deficiency such as get rusty.

Cr12MoV is a kind of Cold pressing die manufactured materials, and it has good wear resistance, thermostability and stainless feature, and its heatproof can reach 520 ℃.Yet yet there are no it has the research report at sealing member manufacture, especially wear ring manufacture view.

Summary of the invention

The application that provides a kind of Cr12MoV wear ring to manufacture of patent application of the present invention, concrete is Cr12MoV is as the application of supercharging blower wear ring manufactured materials, and the present invention also provides a kind of heat-treatment technology method of Cr12MoV wear ring.In research and searching, find, Cr12MoV not only has good heatproof, wear-resisting, thermostability and stainless feature, its heatproof can reach 520 ℃, higher than supercharging blower wear ring, reach the working temperature of 450 ℃, to this material Milling Process, this materials processing amount of every consumption one slitting milling cutter is well below the amount of finish of 3Cr13 material, and by following heat-treatment technology method, this material is also had both to have good high temperature elasticity, met the desired sealed elastic technical requirements of supercharging blower wear ring, at high temperature, in Working environment at a high speed, effectively maintain sealed state, this high temperature elasticity is enough to overcome the axial force of combustion gas and air pressure generation simultaneously, make it more meet the resilient seal requirement as supercharging blower wear ring.

The present patent application also provides a kind of heat-treatment technology method of Cr12MoV wear ring.The heat-treatment technology method of the Cr12MoV wear ring that patent application of the present invention provides, Cr12MoV is stretched and makes the wear ring that meets size, through quench treatment method and temper method, make finished product, its quench treatment method is that quenching temperature is 1050 ℃, Quenching Soaking Time 10 minutes, temper method is that tempering temperature is 550 ℃, tempering insulation time 2～4 hours, making Cr12MoV wear ring hardness is 48～50HRC.

Application and heat-treatment technology method technical scheme thereof that Cr12MoV sealing provided by the invention is manufactured, for supercharging blower wear ring has found the most suitable manufactured materials, Cr12MoV is in the prior art as cold-punching mold manufactured materials, itself there is good heatproof, wear-resisting, thermostability and stainless feature, the present patent application is using it as supercharging blower wear ring manufactured materials, in these performance basis, take full advantage of high temperature elasticity and the toughness not being familiar with always and utilizing, and by the heat-treatment technology method of the technical program by its wear resistance, toughness, elasticity obtains integrated optimization, in high-temperature work environment, wear ring elastic force is unchanged, wear resisting property is without change, dimensional stability, thereby guarantee that this material seal ring keeps for a long time good sealing property in described severe Working environment.In addition, select another reason of Cr12MoV to be also the feature that Cr12MoV is cheap, with 3Cr13 close prices.

Embodiment

The present patent application a kind of Cr12MoV material is disclosed as the application of supercharging blower wear ring manufactured materials.

Cr12MoV not only has good heatproof, wear-resisting, thermostability and stainless feature, its heatproof can reach 520 ℃, meet supercharging blower wear ring at 450 ℃ or higher than the temperature requirement of 450 ℃ of working temperatures, 450 ℃ or higher than 450 ℃ of working temperatures in, there is good wear resistance, what is more important Cr12MoV has both and has good high temperature elasticity and toughness after processing by following heat-treatment technology method, meets the resilient seal requirement as supercharging blower wear ring.By material Milling Process being compared to the wear resisting property of Cr12MoV and 3Cr13, the Cr12MoV materials processing amount of every consumption one slitting milling cutter is only 3000, and the amount of finish of 3Cr13 material is 20000.

The invention provides a kind of heat-treatment technology method of Cr12MoV wear ring, this heat-treatment technology method is that Cr12MoV is stretched and to make that the wear ring that meets size carries out quench treatment method and temper method is made finished product, the quenching temperature that quench treatment method is wherein wear ring is 1050 ℃, Quenching Soaking Time 10 minutes, temper method is that the tempering temperature of wear ring is set as 550 ℃, tempering insulation time 2～4 hours, be preferably 4 hours, the Cr12MoV wear ring hardness obtaining is 48～50HRC.Sealed elastic and the wear-proof technique requirement of supercharging blower wear ring have been met, in the Working environment of high temperature, high speed, effectively maintain sealed state, install in practical application, in 450 ℃ of Working environments, work 4 hours, sealing ring resilience is substantially unchanged, wear resisting property is good, and when temperature reaches 520 ℃, ruckbildung just appears in wear ring.

Claims

1. a Cr12MoV is as the application of wear ring manufactured materials.

2. a Cr12MoV is as the application of supercharging blower wear ring manufactured materials.

3. the heat-treatment technology method of a Cr12MoV wear ring, it is characterized in that Cr12MoV to stretch and make the wear ring that meets size, through quench treatment method and temper method, make finished product, its quench treatment method is that quenching temperature is 1050 ℃, Quenching Soaking Time 10 minutes, temper method is that tempering temperature is 550 ℃, tempering insulation time 2～4 hours, making Cr12MoV wear ring hardness is 48～50HRC.