Beijing General Research Institute of Nonferrous Metals

As an authoritative organization in the field of non-ferrous metal detection in my country, it specializes in engineering failure analysis caused by abnormal fracture or corrosion of mechanical parts, engineering components, etc.
Failure analysis is particularly important for improving product quality and preventing recurrence of accidents. For more than ten years, we have conducted failure analysis on aircraft, submarines, tanks, high-power internal combustion engines, large-capacity generator sets, high-voltage transmission equipment, and a variety of important civilian facilities, and achieved remarkable results
Failure analysis is a timely Its complex process requires the intersection of multiple disciplines. Our center has advanced analysis and testing equipment, complete material analysis and testing methods and standards, and an experienced professional technical team. It can comprehensively analyze and evaluate the causes and mechanisms of fracture and corrosion failure of non-ferrous metal materials. At the same time, the center serves as an independent third-party testing The report issued by the agency is objective, scientific, accurate and fair. Whether it is for the client or other parties, it is based on facts and analytical test results.
Analytical methods
:
Chemical analysis: gravimetric method, volumetric method, spectrophotometry
Instrumental analysis: glow discharge mass spectrometry, inductively coupled plasma mass spectrometry, inductively coupled plasma emission Spectroscopy, atomic absorption spectroscopy,
-ray fluorescence spectroscopy, ion chromatography, spark direct reading spectroscopy, gas component analysis in metal materials, etc.
Microstructure and structural analysis: ultra-high voltage electron microscope, high-resolution transmission electron microscope, field emission scanning electron microscope, scanning electron microscope, analytical electron microscope,
Ray diffractometer, metallographic microscope
Mechanics And physical performance testing: universal material testing machine and high and low temperature equipment, durable creep testing machine, metal fatigue testing machine, stress corrosion testing machine, process performance testing, hardness testing, metal weathering resistance test, metal corrosion resistance testing, metal coating Layer machine surface testing.
Service cases
: The center has carried out a large amount of failure analysis work and served hundreds of customers. Some cases are as follows:
, Analysis and evaluation of corrosion and fracture of copper pipes in heat exchangers of large thermal power plants
, Railway electric locomotive copper wire deformation failure analysis
, Cherokee automobile transfer case fracture failure analysis
, high-power diesel engine crankshaft and power box failure analysis
, special functional ceramic failure analysis, etc.< br/> , failure analysis of micro-explosion perforation of the main cooling pipe of the large oxygen generator cold box
, failure analysis of fracture of cast aluminum cooling fan of tank
, emergency analysis and accident cause analysis of beryllium oxide accident for military industry
/>, Failure analysis of railway electrification cable supports and related components
, Failure analysis of North China transmission line supports
, Failure analysis of diesel locomotive engine cylinders
, Failure analysis of tank engine cylinder heads
, Synthetic fiber production line feeding rod failure analysis
, Forklift shaft fracture failure analysis
, Civil water supply and heating equipment pipes and failure analysis of various valves
, Aluminum matrix composite Analysis of material fracture mechanism
, Analysis of failure causes of steel wire ropes used in oil fields
, Analysis of fracture failure of human implant materials
, Fracture analysis of cast aluminum-silicon alloys used in automobile hoods,
, Aircraft engine anatomy analysis
<
Case introduction
Failure analysis of micro-explosion perforation of the main cold pipe of the cold box of a large oxygen concentrator
The oxygen concentrator of a coal chemical company was put into operation soon after it was put into operation. A puncture failure occurred at the inner arc of the main cold pipe bend of the cold box, causing huge losses to the company. In order to prevent such accidents from happening again, a failure analysis was carried out on the micro-explosion and perforation accident of the main cold pipe of the large oxygen generator cold box, and the root cause of the accident was successfully found. The main reason was that the organic matter formed by dry evaporation in the dead zone of the liquid oxygen flow crystallized and enriched. Concentrated on the inside of the pipe wall, electrostatic discharge causes micro-explosive combustion and perforation, and the failure part uses a high-nickel and manganese stainless steel cold iron bushing at the weld. It is this material that accelerates the intensity of the explosive combustion. It is recommended that enterprises strengthen equipment operation management, reduce the organic content in liquid oxygen, improve the type of cold iron and other measures to prevent perforation accidents.
Customer feedback and evaluation: The data is accurate, the analysis is in place, the root cause of the accident is found, and similar accidents are avoided from happening again
Keywords:
Non-ferrous metal failure analysis, non-ferrous metal fracture failure analysis, Non-ferrous metal corrosion failure analysis
Metal material failure analysis, metal material fracture failure analysis, metal material corrosion failure analysis
Part failure analysis, part fracture failure analysis, part corrosion failure analysis
Part failure analysis, Component fracture failure analysis, component corrosion failure analysis
Component failure analysis, component fracture failure analysis, component corrosion failure analysis
Metal failure analysis center, metal failure analysis laboratory, metal failure analysis institution.
We can do metal material failure analysis and failure cause analysis there.