CN111397804A - Manufacturing method of volute leakage failure sample - Google Patents
Manufacturing method of volute leakage failure sample Download PDFInfo
- Publication number
- CN111397804A CN111397804A CN202010269937.4A CN202010269937A CN111397804A CN 111397804 A CN111397804 A CN 111397804A CN 202010269937 A CN202010269937 A CN 202010269937A CN 111397804 A CN111397804 A CN 111397804A
- Authority
- CN
- China
- Prior art keywords
- leakage
- sample piece
- volute
- value
- leakage value
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of turbocharger manufacturing, and particularly relates to a method for manufacturing a volute leakage failure sample, which comprises the following steps: (1) selecting a volute with a qualified leakage value as a sample piece; (2) customizing a non-standard gauge block according to the leakage value requirement of a workpiece drawing, wherein the sum of the leakage amount of the non-standard gauge block and the leakage amount of a sample piece is greater than the leakage value required by the drawing; (3) during actual use, according to different types of the leak hunting machine, the non-scalar block is inserted into the specified position of the leak hunting machine and then leaks with the sample piece together to obtain a total leakage value, or the non-scalar block and the sample piece are connected through an air pipe and an external thread and then leak hunting is carried out to obtain the total leakage value. The invention realizes the reliability evaluation of the product leakage detection system by a limit leakage value determination method consisting of the leakage detector, the sample piece and the non-standard block, and provides convincing basis for effectively ensuring the product quality; the method can be popularized and applied to the manufacturing and the determination of all non-assembled shell NG leakage value limit samples.
Description
Technical Field
The invention belongs to the technical field of turbocharger manufacturing, and particularly relates to a method for manufacturing a volute leakage failure sample.
Background
The magnitude of the volute leakage value refers to the leakage value generated every minute after the inner cavity of the shell is in a sealed state and is inflated to a certain pressure value to reach balance, the unit is usually ml/min, and the value is an index for evaluating the performance of the turbocharger. The leakage detection requirement and the maximum allowable leakage amount can be clear on the drawing of each volute product, and the leakage value of some products is only 5 ml/min. In normal production, in order to ensure the effectiveness of the leakage detection system, leakage qualified samples and leakage unqualified samples are also manufactured for daily point inspection. The unqualified sample piece means that the leakage rate in unit time exceeds the maximum allowable leakage rate under the set pressure, and the leak detector gives an alarm at the moment. Only the failure sample piece requiring the overproof alarm is easy to manufacture; however, the customer requires that NG samples also display values to assess the effectiveness of the product's measurement system. The new requirement for detecting the failure mode of the product belongs to a new technology in the same industry.
Disclosure of Invention
The invention aims to provide a method for manufacturing a volute leakage failure sample, which exceeds the maximum allowable leakage amount and can display a leakage value on a leakage detector.
According to the technical scheme of the invention, the manufacturing method of the volute leakage failure sample piece comprises the following steps:
(1) selecting a volute with a qualified leakage value as a sample piece;
(2) customizing a non-standard gauge block according to the leakage value requirement of a workpiece drawing, wherein the sum of the leakage amount of the non-standard gauge block and the leakage amount of a sample piece is greater than the leakage value required by the drawing;
(3) during actual use, according to different types of the leak hunting machine, the non-scalar block is inserted into the specified position of the leak hunting machine and then leaks with the sample piece together to obtain a total leakage value, or the non-scalar block and the sample piece are connected through an air pipe and an external thread and then leak hunting is carried out to obtain the total leakage value.
Further, the sum of the leakage amount of the non-standard block and the leakage amount of the sample in the step (2) does not exceed the maximum measurement range of the leak detector.
The invention has the beneficial effects that: the reliability evaluation of a product leakage detection system is realized by a limit leakage value measuring method consisting of a leakage detector, a sample piece and a non-standard block, and convincing basis is provided for effectively ensuring the product quality; the method can be popularized and applied to the manufacturing and the determination of all non-assembled shell NG leakage value limit samples.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example one
A manufacturing method of a volute leakage failure sample piece comprises the following steps:
(1) the maximum allowable leakage value of the volute is 5ml/min (required by a workpiece drawing), and a volute with the leakage value of 2ml/min is selected as a sample;
(2) customizing a non-standard gauge block with a leakage value of 3.3 ml/min according to the requirements of a workpiece drawing;
(3) and inserting the non-scalar block into the specified position of the side leakage instrument, and then carrying out leakage detection together with the sample piece to obtain that the total leakage value is about 5.3ml/min (due to the existence of errors, the average value is obtained by multiple measurements), the total leakage value exceeds the requirement of the drawing of 5ml/min, and the leakage detector can normally display the total leakage value.
Example two
(1) The maximum allowable leakage value of the volute is 5ml/min (required by a workpiece drawing), and a volute with a leakage value of 4ml/min is selected as a sample;
(2) customizing a non-standard gauge block with a leakage value of 2.1 ml/min according to the requirements of a workpiece drawing;
(3) and connecting the non-scalar block and the sample piece in series through an air pipe and an external thread, and overlapping the leakage values of the non-scalar block and the sample piece to obtain the leakage value which is about 6.1ml/min and exceeds the requirement of the drawing of 5ml/min, wherein the leakage value can be normally displayed by a leakage detector.
According to the invention, the leakage value is obtained by superposing the leakage values of the non-scalar block and the sample piece, the numerical value is controllable, and the leakage value can be displayed on a leakage detector; compared with a standard leak hole, the non-scalar block has the advantages that the leak value can be flexibly adjusted according to the sample, the drawing requirements and the leak detector, and the method can be applied to the manufacturing and the determination of the NG leak value limit samples of all non-assembled shells.
Claims (2)
1. A manufacturing method of a volute leakage failure sample piece is characterized by comprising the following steps:
(1) selecting a volute with a qualified leakage value as a sample piece;
(2) customizing a non-standard gauge block according to the leakage value requirement of a workpiece drawing, wherein the sum of the leakage amount of the non-standard gauge block and the leakage amount of a sample piece is greater than the leakage value required by the drawing;
(3) during actual use, according to different types of the leak hunting machine, the non-scalar block is inserted into the specified position of the leak hunting machine and then leaks with the sample piece together to obtain a total leakage value, or the non-scalar block and the sample piece are connected through an air pipe and an external thread and then leak hunting is carried out to obtain the total leakage value.
2. The method for manufacturing a volute leakage failure sample according to claim 1, wherein the sum of the leakage amount of the non-standard block and the sample leakage amount in step (2) does not exceed the maximum measurement range of the leak detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269937.4A CN111397804A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of volute leakage failure sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269937.4A CN111397804A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of volute leakage failure sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111397804A true CN111397804A (en) | 2020-07-10 |
Family
ID=71435051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010269937.4A Pending CN111397804A (en) | 2020-04-08 | 2020-04-08 | Manufacturing method of volute leakage failure sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111397804A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2303926A (en) * | 1995-08-01 | 1997-03-05 | Europ Gas Turbines Ltd | Testing a volute of a turbocharger, compressor, or fan for leaks |
| CN1544902A (en) * | 2003-11-12 | 2004-11-10 | 安徽中科智能高技术有限责任公司 | Sample part with adjustable gas-leakage quantity and detection method thereof |
| CN103376188A (en) * | 2012-04-18 | 2013-10-30 | 天纳克-埃贝赫（大连）排气系统有限公司 | Apparatus for detecting airtight leakage detector by using airtight limit sample |
| CN104062074A (en) * | 2014-07-02 | 2014-09-24 | 无锡烨隆精密机械有限公司 | Air tightness detection machine of turbocharger turbine casing |
| CN104949807A (en) * | 2015-07-03 | 2015-09-30 | 神龙汽车有限公司 | Method and device for misjudgment-preventing correction of helium detecting system through double sample pieces |
| CN204988635U (en) * | 2015-08-04 | 2016-01-20 | 中国第一汽车股份有限公司 | Leak test standard component with adjustable |
-
2020
- 2020-04-08 CN CN202010269937.4A patent/CN111397804A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2303926A (en) * | 1995-08-01 | 1997-03-05 | Europ Gas Turbines Ltd | Testing a volute of a turbocharger, compressor, or fan for leaks |
| CN1544902A (en) * | 2003-11-12 | 2004-11-10 | 安徽中科智能高技术有限责任公司 | Sample part with adjustable gas-leakage quantity and detection method thereof |
| CN103376188A (en) * | 2012-04-18 | 2013-10-30 | 天纳克-埃贝赫（大连）排气系统有限公司 | Apparatus for detecting airtight leakage detector by using airtight limit sample |
| CN104062074A (en) * | 2014-07-02 | 2014-09-24 | 无锡烨隆精密机械有限公司 | Air tightness detection machine of turbocharger turbine casing |
| CN104949807A (en) * | 2015-07-03 | 2015-09-30 | 神龙汽车有限公司 | Method and device for misjudgment-preventing correction of helium detecting system through double sample pieces |
| CN204988635U (en) * | 2015-08-04 | 2016-01-20 | 中国第一汽车股份有限公司 | Leak test standard component with adjustable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1226367A (en) | Method of measuring leak rates | |
| US3872712A (en) | Dynamic air flow comparator system | |
| CN106442736B (en) | Testing device, testing system and testing method for uniaxial compression measurement of impact tendency index and acoustic characteristic of gas-containing coal | |
| CN109540408A (en) | Air tightness detection method and device | |
| WO2005110780A1 (en) | Tire pressure leak detection method and system | |
| US5600996A (en) | Method and apparatus for testing the tightness of housings | |
| CN105388004A (en) | Aeroengine blisk safe excess-revolution testing system and method | |
| CN103091175B (en) | Outside-test hydraulic pressure test method | |
| CN113790852A (en) | Detection device and detection method for detecting performance of high-pressure hydrogen pressure reducing valve | |
| CN111238946B (en) | Method for determining self-tightening pressure of aluminum alloy liner fiber-wound gas cylinder through test | |
| CN111397804A (en) | Manufacturing method of volute leakage failure sample | |
| CN112013583B (en) | Integrated device for automatically detecting leakage and filling fluorine for high-power air conditioner | |
| CN101178334A (en) | Vehicle fuel tank cap leakage flow rate testing methods | |
| CN210269078U (en) | Air tightness measuring device for plastic welding part | |
| CN202329965U (en) | Detection device for brake caliper cells | |
| CN111751048A (en) | Pressure sensor online checking device and method matched with digital instrument | |
| CN215910048U (en) | Testing device of optical fiber F-P type high-temperature pressure sensor | |
| CN111044218A (en) | Response time measuring device of vacuum pressure gauge | |
| CN109211490B (en) | Air tightness detection device | |
| CN112392800A (en) | Detection and judgment process method for leakage value of low-leakage hydraulic product | |
| CN211347262U (en) | Inspection device for valve shell leakage | |
| CN217878159U (en) | Device for rapidly detecting leakage of balance valve of differential pressure transmitter | |
| CN110281713A (en) | It is a kind of using before wheel rim and tire dynamic and balance to putting matched wheel fitters skill | |
| CN220322645U (en) | Tightness test system | |
| CN112880918B (en) | Method and device for detecting leakage of hydraulic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |
|
| RJ01 | Rejection of invention patent application after publication |