What Are Our Concerns About Bearings（60）

Q1:What are the steps of designing forging blanks for piston rod parts?  

A:1.2 Mechanical processing process design 1.2.1 Selection of blank from the parts requirements, not only to have high tensile, pressure.  According to the function and requirements of the lever, the tolerance level of the part is determined as ordinary level.  1. 2. 2.  Special fixture for blank hole process 

 Two, original data (1) part sketch of the processed parts (2) production.  Abstract (in Chinese and foreign languages, each account for one page) ③ Parts process analysis ④ machining process design ⑤ refers to.  (2) After forging the blank processing allowance is determined according to the quality of the forgings estimated above, the shape complexity coefficient and the length of the parts.  

3. The selection of datum 3. The selection of the correct selection of the positioning datum is to develop machining process procedures and fixture design.  3. Structural requirements of heat-treated Gear Parts Chapter 3 Design of machining process Rules  1. Main process characteristics of various production types 2. Selection of surface processing methods for parts 3.  Commonly used blank manufacturing method and.  

Chapter 2 Formulation of Technical Rules for Machining…  08 Section 1 Analysis of Parts and Blank selection 09 Section 2.  The typical structure of fixture and its related standard design fixture also needs to collect the typical fixture structure atlas and the relevant fixture parts standard.  F: And then according to the mold drawing to design the mold part drawing of each mold part. (the process drawing and the full set of mold drawing and ISO.  Machining process the machining of a blank or workpiece by mechanical force on a machine tool using a cutting tool or other tool.  

Q2:Forgings hardening hardness up to 64~!  Surface finish 1.6 roundness 0.008 both inside and outside the circle, which grinding wheel is the most suitable for grinding?  

A:The machined surface roughness of a part (formerly known as “surface finish”) is the arithmetic mean deviation of the contour within the standard sampling length, in microns.  Roughness requirements of Ra1.6 can be achieved by general finishing cars, but it requires operators with better operation skills to achieve it under the condition that the tool Angle and cutting parameters are fully matched.

It is required that both the inner and outer circles should be processed by grinding, and the choice of grinding wheel is: white corundum, 60 grain size, soft, ceramic bond for grinding the outer circle. Such as P400*40*203WA60JV35 grinding wheel.  Due to the high hardness of parts material, soft grinding wheel is easy to be threshed to ensure the requirements of grinding wheel self-sharpening. However, because of the small aperture, the grinding wheel is also small, so the grinding wheel should be slightly harder than that of the outer grinding wheel.  Roundness is guaranteed by the process system and has little relation with grinding wheel.  

Q3:What Chinese material is equivalent to Alloy 20?

A:Alloy 20 is UNS N08020, a nickel-chromium iron Alloy, equivalent to China’s duplex stainless steel 0Cr25Ni20.  Plate ASTM B463, pipe ASTM B729, bar ASTM B473, Forgings ASTM B564.  

Q4:What is the qJ500A-98 standard?

A:Qj500a-98 —- alloy structural steel forgings – Impact performance test standard for various materials specified in the technical conditions  

Q5:What are the ultrasonic inspection methods and standards?

A:Compilation of metal nondestructive testing and Flaw Detection standards  

Chinese Machinery Industry Standard Compendium Metal Nondestructive Testing and Flaw Detection Volume (I) (2nd Edition)  

One, general and comprehensive  

GB/T 5616-1985 Guidelines for the application of routine nondestructive testing  

Classification and specification of weld defects for metal melt welding  

Nondestructive testing personnel qualification and certification  

Requirements and classification of defects for fusion joints of welding quality assurance steels  

GB/T 14693-1993 Code for nondestructive testing of welds  

JB 4730-1994 Nondestructive testing of pressure vessels

JB/T 5000.14-1998 General technical specifications for heavy machinery Nondestructive testing of steel castings  

JB/T 5000.15-1998 General technical conditions for heavy machinery Nondestructive testing of wrought steel parts

JB/T 7406.2-1994 Testing machine Terminology Nondestructive testing instrument  

JB/T 9095-1999 Technical specification for routine nondestructive testing of forged welds for centrifuges and separators

Two, surface method  

Indirect evaluation method for black light source  

GB/T 9433-1988 Grade method for penetration detection and defect display marks of steel castings  

GB/T 9444-1988 Method of magnetic particle inspection and quality rating for steel castings  

Steel — Test method of magnetic powder for tower hair grain  

GB/T 12604.3-1990 Nondestructive testing terminology penetrant testing  

Nondestructive testing — Terminology for magnetic particle testing  

GB/T 15147-1994 Nuclear fuel assembly parts penetration test method  

GB/T 15822-1995 Magnetic particle testing method  

Measurement of black light source (UV-A) radiation for nondestructive testing  

Nondestructive testing — Metallographic copy technology for surface inspection  

GB/T 18851-2002 Standard test block for penetration test of non-destructive testing  

JB/T 5391-1991 Specification for magnetic particle inspection of rolling bearing parts of railway locomotive and rolling stock  

JB/T 5442-1991 Magnetic particle inspection for important parts of compressors  

JB/T 6061-1992 Method for magnetic particle inspection of welds and classification of magnetic marks of defects  

JB/T 6062-1992 Penetration test method for welds and classification of defect marks  

JB/T 6063-1992 Technical specifications for magnetic particle inspection  

JB/T 6064-1992 Technical specification for chrome-plated test blocks for penetrant inspection  

JB/T 6065-1992 Standard test sheet for magnetic particle inspection  

JB/T 6066-1992 Standard test block for magnetic particle inspection  

JB/T 6439-1992 Magnetic particle inspection of steel cast under pressure for valve  

JB/T 6719-1993 Internal combustion engine inlet and exhaust doors magnetic particle inspection  

JB/T 6722-1993 Magnetic particle testing for connecting rod of internal combustion engine  

JB/T 6729-1993 Internal combustion engine crankshaft, camshaft magnetic particle inspection  

JB/T 6870-1993 Technical specifications for rotating magnetic field flaw detector  

JB/T 6902-1993 Valve steel castings liquid penetration testing  

JB/T 6912-1993 Pump parts nondestructive testing magnetic particle testing  

JB/T 7411-1994 Technical specification of electromagnetic yoke flaw detector  

JB/T 7523-1994 Technical requirements for materials for penetrant testing  

JB/T 8118.3-1999 Technical specifications for magnetic particle inspection of piston pins of internal combustion engines  

JB/T 8290-1998 Magnetic particle flaw detection machine  

JB/T 8466-1996 Liquid penetration test method for forged steel parts  

JB/T 8468-1996 Method for magnetic particle inspection of wrought steel parts  

JB/T 8543.2-1997 Pump parts non-destructive testing penetration testing  

JB/T 9213-1999 Non-destructive testing Penetrant inspection type A test block  

JB/T 9216-1999 Method for controlling the quality of penetrant inspection materials  

JB/T 9218-1999 Penetration testing method  

JB/T 9628-1999 Method for magnetic particle inspection of turbine blades  

JB/T 963.1-1999 Method for magnetic particle flaw detection and quality classification of steam turbine steel castings  

JB/T 9736-1999 Magnetic particle testing method for injector parts, plunger parts and oil outlet valve parts  

JB/T 9743-1999 Technical specification for magnetic particle inspection of connecting rod bolts of internal combustion engines  

JB/T 9744-1999 Internal combustion engine parts magnetic particle testing method  

Chinese Machinery Industry Standard Compendium Metal Nondestructive Testing and Flaw Detection Volume (Middle) (2nd Edition)  

3. Radiation method  

Radiography and quality classification for fusion welded butt joints of steel  

Portable X and γ radiation dose-rate meters and monitors for radiation protection  

GB/T 5294-2001 Specification for personal monitoring of occupational exposures External exposure monitoring  

Steel castings — Classification of radiographs and film grades  

Industrial radiographic films — Determination of ISO sensitivity and average slope by X – and gamma-ray exposure

Radiation protection and safety standards for cobalt-60 irradiation devices  

Aluminium alloy castings, X-ray inspection, pinhole (circular) classification  

GB/T 11806-2004 Code for safe transportation of radioactive materials  

GB/T 11851-1996 Pressure water reactor fuel rod welding seam X-ray examination method  

Requirements and classification of defects for fusion joints of welding quality assurance steels  

GB/T 12604.2-1990 Nondestructive testing terminology radiographic testing  

GB/T 12604.8-1995 Nondestructive testing terminology neutron testing  

Radiographic process and quality classification for circular fusion welding butt joints of steel tubes  

Direct reading personal dose equivalent and dose equivalent rate monitors for X and γ radiation  

GB/T 13653-2004 Method for X-ray examination of aviation tyres  

Fixed X and γ radiation dose-rate meters, alarm devices and monitors for radiation protection  

GB/T 14058-1993 gamma ray flaw detector  

Radiological protection standard for industrial X-ray flaw detection  

GB/T 16363-1996 Shielding properties of X-ray protective materials and test methods  

Method of γ -ray panoramic exposure photography for spherical storage tanks  

GB/T 16757-1997 X-ray protective clothing  

Specification for radiological health protection monitoring — Part 1: Industrial X-ray detection  

GB/T 17589-1998 Standard for image quality assurance testing of X-ray computed tomography equipment  

GB/T 17925-1999 Real-time X-ray imaging inspection of butt weld of gas cylinder  

GB/T 18043-2000 Non-destructive testing method for the content of precious metal jewelry — X-ray fluorescence spectrometry  

Radiological protection requirements for industrial γ -ray flaw detection  

Basic standard for protection against ionizing radiation and safety of radiation sources  

GB/T 19348.1-2003 Non-destructive testing — Industrial radiographic films — Part 1: Classification of industrial radiographic film systems  

GB/T 19348.2-2003 Non-destructive testing — Industrial radiographic films — Part 2: Control of film processing by reference method  

JB/T 5453-1991 Specification for industrial X-ray image intensifier television system  

JB/T 6440-1992 Radiographic inspection of pressure steel castings for valves  

JB/T 7260-1994 Radiographic and quality classification of copper welds for air separation equipment  

JB/T 7412-1994 Fixed (mobile) industrial X-ray flaw detector  

JB/T 7413-1994 Portable industrial X-ray flaw detector  

JB 7788-1995 Industrial X-ray flaw detector protection rules below 500kV  

JB/T 7902-1995 linear image quality meter  

JB/T 7903-1999 Industrial radiographic film viewing lamp

JB/T 8543.1-1997 Non-destructive testing of pump parts – Radiographic testing of steel castings under pressure and classification of film  

JB/T 8764-1998 General specification for X-ray tubes for industrial inspection  

JB/T 9215-1999 Method for controlling radiographic image quality  

JB/T 9402-1999 Industrial X-ray flaw detector performance test method  

Chinese Machinery Industry Standard Compendium Metal Nondestructive Testing and Flaw Detection Volume (Ii) (2nd Edition)  

4. Acoustic methods  

Method for ultrasonic examination of forged round cakes  

GB/T 2970-2004 Method for ultrasonic examination of thick steel plate  

Ultrasonic testing method for copper alloy bars  

Method for ultrasonic examination of wrought steel bars

Ultrasonic testing method for titanium and titanium alloy products  

Method for ultrasonic inspection of seamless steel tubes

Method for ultrasonic examination of steel forgings  

GB/T 6519-2000 Ultrasonic test method for deformed aluminum alloy products  

GB/T 7233-1987 Method of ultrasonic flaw detection and quality rating for steel castings  

GB/T 7734-2004 Ultrasonic testing method for composite steel plates  

GB/T 7736-2001 Steel – Ultrasonic examination of low size microstructure and defects  

GB/T 8361-2001 Method for ultrasonic inspection of cold drawn round steel surface  

GB/T 8651-2002 Ultrasonic plate wave testing method for metal plates  

Ultrasonic test method for deformed high strength steel

GB/T 11259-1999 Method for making and checking steel comparison blocks for ultrasonic examination  

Contact ultrasonic oblique inspection method  

Contact ultrasonic pulse-echo method for thickness measurement  

Manual ultrasonic testing of steel welds and classification of testing results  

Terminology for nondestructive testing — Ultrasonic testing  

Terminology for nondestructive testing — Acoustic emission testing  

Ultrasonic test method for titanium and titanium alloy pipes  

Ultrasonic testing method for cold rolling work rolls of wrought steel  

Method for ultrasonic testing of cast steel rolls  

GB/T 15830-1995 Steel pipe butt girth weld ultrasonic testing method and classification of test results  

GB/T 18182-2000 Metallic pressure vessel acoustic emission detection and result evaluation method  

GB/T 18256-2000 Welded steel tubes (except submerged arc welding) — Ultrasonic test method for confirming water pressure tightness  

Plain bearings — Ultrasonic nondestructive testing of bonding strength of multilayer metal plain bearings  

GB/T 18694-2002 Nondestructive testing ultrasonic inspection probe and characterization of sound field  

GB/T 18852-2002 Non-destructive testing — Reference blocks and methods for measuring the acoustic beam characteristics of contact probes by ultrasonic testing  

JB/T 1581-1996 Method for ultrasonic inspection of rotor and spindle forgings of steam turbines and turbogenerators  

JB/T 1582-1996 Ultrasonic flaw detection method for forgings of turbine impeller  

JB/T 4008-1999 Liquid immersion ultrasonic longitudinal wave direct inspection method  

JB/T 4010-1985 Ultrasonic testing method for steel guard rings for turbogenerators  

JB/T 5093-1991 Internal combustion engine friction welding valve ultrasonic testing specifications  

JB/T 5439-1991 Ultrasonic testing of nodular cast iron parts for compressor  

JB/T 5440-1991 Ultrasonic inspection of forged steel parts for compressor  

JB/T 5441-1991 Ultrasonic inspection of cast steel parts for compressor  

JB/T 5754-1991 Specification for single channel acoustic emission detector  

JB/T 6903-1993 Method for ultrasonic examination of forged steel parts of valves  

JB/T 6916-1993 Method for acoustic emission detection and evaluation of high-pressure gas cylinders in service  

JB/T 7367.1-2000 Ultrasonic testing method for cylindrical spiral compression spring  

JB/T 7522-1994 Method for measuring ultrasonic velocity of materials  

JB/T 7524-1994 Ultrasonic inspection of welding seam of building steel structure  

JB/T 7602-1994 Ultrasonic inspection of t-joint of horizontal internal combustion boiler  

JB/T 7667-1995 Method for acoustic emission detection and evaluation of pressure vessels in service  

JB/T 8283-1995 Test method for performance of acoustic emission testing instruments  

JB/T 8428-1996 Standard test blocks for calibration of ultrasonic detector for steel welds  

JB/T 8467-1996 Ultrasonic testing method for forged steel parts  

JB/T 8931-1999 Ultrasonic testing method for surfacing layer  

Ultrasonic inspection of JB/T 9020-1999 Large forging crankshaft  

JB/T 9212-1999 Ultrasonic inspection of welding seam of atmospheric steel oil tank  

JB/T 9214-1999 Method for testing the working performance of type A pulsed reflection ultrasonic system  

JB/T 9219-1999 Method for determination of ultrasonic velocity of ductile iron  

JB/T 963.2-1999 Method for ultrasonic flaw detection and quality classification of steam turbine steel castings  

JB/T 9674-1999 Ultrasonic detection of internal defects of porcelain parts  

JB/T 10061-1999 General specification for A type pulsed reflection ultrasonic flaw detector  

JB/T 10062-1999 Test method for performance of probes for ultrasonic flaw detection  

JB/T 10063-1999 Technical specifications for Standard Test block No. 1 for ultrasonic flaw detection  

JB/T 10326-2002 Ultrasonic inspection technical standard for protection rings of in-service generators  

Electromagnetic method, leakage and infrared method  

GB/T 5126-2001 Aluminum and aluminum alloy cold drawn thin wall pipe testing method by eddy current  

GB/T 5248-1998 Method for eddy current testing of copper and copper alloy seamless tubes  

GB/T 7735-2004 Method for eddy current inspection of steel tubes  

Round steel — Method of through-eddy current inspection  

Leak detection of nuclear fuel rods in pressurized water reactors by helium mass spectrometry  

Terminology for nondestructive testing — Eddy current testing  

GB/T 12604.7-1995 Nondestructive testing — Terminology for leak testing  

Terminology for nondestructive testing — Infrared testing

GB/T 12606-1999 Magnetic flux leakage testing method for steel tubes  

Method for eddy current inspection of titanium and titanium alloy pipes  

Helium mass spectrometry leak detector  

GB/T 14480-1993 Performance test method for eddy current flaw detection system  

Helium leakage testing GB/T 15823-1995  

Round steel — Method for eddy current inspection of point type (coil)