The main equipment of large forgings nuclear research to obtain a breakthrough
Double-click automatic GunBing publishers:Anon. Release time:2013年01月29日 reading:time 【字体:

The main equipment of large forgings nuclear research make a breakthrough, AP1000 and high temperature gas cooled reactor of large forgings comprehensive performance indicators and manufacturing technology research results has reached the international advanced level.

The main equipment of large forgings nuclear research to obtain a breakthrough

The weight on the development of high temperature gas cooled reactor under seal head forg

On July 15,, the China machinery industry federation in Shanghai presided by the Shanghai heavy machinery works co., LTD. (hereinafter referred to as the "top heavy company") and Shanghai traffic university developed "AP1000 nuclear island main equipment of large forgings" and "high temperature gas cooled reactor nuclear island main equipment of large forgings" scientific and technological achievements appraisal meeting. Six academician of Chinese academy of engineering and five senior experts composed of scientific and technological achievements appraisal committee through the listen to the work of the project report, review the appraisal materials, field survey 165MN free forging hydraulic press workshop, heat treatment workshop equipment and metalworking workshop physical forgings, finally through the above two project national scientific and technological achievements appraisal.

 It is identified that AP1000 nuclear island main equipment of large forgings comprehensive performance indicators and manufacturing technology research results has reached the international advanced level, the high temperature gas cooled reactor nuclear island main equipment pressure vessel and reactor internals large forgings are is the world's first set, its comprehensive performance indicators and manufacturing technology research also reached the international advanced level. Appraisal opinion suggestion, should further strengthen applied basic research, the stable process, improve product percent of pass to China's nuclear safety and efficient development make more contribution.

  The analysis indicates that the main equipment of large forgings AP1000 nuclear research a breakthrough, marking the Shanghai is the first in China to form three generations of nuclear power core equipment complete production capacity; And high temperature gas cooled nuclear reactor nuclear power forgings world first one breakthrough, for our country independent design of the fourth generation nuclear power technology to provide ancillary equipment.

The enterprise joint technology research

The information provided on heavy company shows that by the end of 2011, a complete set of AP1000 nuclear pressure vessel forgings complete development; In addition to water chamber head not delivery outside, steam generator forging development completed; A complete set of regulator forgings complete development as well as the realization in pile member with austenitic stainless steel large forgings of localization. In addition, the world's first set of high-temperature gas-cooled reactor pressure vessels of a complete set of forgings and a complete set of reactor internals forgings are complete development.

As we have learned, in the whole development process, the heavy company and Shanghai traffic university and other scientific research institutions to carry out further production - learn - research cooperation, and Shanghai traffic university cooperation construction "large castings and forgings engineering technology center" and established the "PanJianSheng academician workstation", effectively promoted the AP1000 nuclear power and high temperature gas cooled reactor nuclear island main equipment in the development of the forging process, improve the overall level of manufacturing large forgings.

Moreover, in order to support the development of nuclear power of large forgings, heavy on the company and the Shanghai traffic university through the cooperation of steel, forging, heat treatment on the key techniques such as the further research.

Relevant data shows, through the cooperation, our study and master the big ingot many inclusion pouring technology, realize the 500 - ton ingot casting; more package The development of large cross section stainless steel ingot casting technology; To carry out the big steel forging process empty defect compaction mathematical modeling and computer simulation, By using the computer simulation technology optimization special complex forging process and special tooling For forging heat treatment water temperature field of computer simulation, to provide the scientific basis for the optimization of process.

In addition, the appraisal committee clearly pointed out that the heavier the company developed AP1000 nuclear island main equipment of large forgings six key manufacturing techniques, including super double vacuum steel smelting casting and large austenitic stainless steel electroslag casting technology, pressure vessel integration roof forgings rolling forming and step cylinder (over section) of the reamer forming technology, steam generator ellipsoidal head ring forgings copying forging and tube plate forging center compaction forging technology, the reactor internals large austenitic stainless steel forgings grain size control and crack prevention and control forging technology, profiled complex forging and heat treatment technology of forging, thick and large combined heat treatment quenching device design technology.

And in high temperature gas cooled reactor nuclear island main equipment development, research and development the main equipment of large forgings four key manufacturing technology; Pressure vessel large diameter cylinder forging forming technology; Heavy pressure vessel diameter of 7300 mm head panel forging and deep drawing technology; Large diameter thick wall pressure vessel shell heat treatment technology.

A solid significant achievements

The heavy company in the appraisal report points out, after 3 years of technical research, in the big steel manufacturing, special forging forming and compaction, very thick, special forging performance heat treatment technology for important breakthrough, successfully developed the accord with purchase specification of AP1000 nuclear power and high temperature gas cooled reactor nuclear power of large forgings, forgings quality level to reach even more than foreign imports of forgings.

The result obtained was based on the weight of the company for many years in the field of nuclear power forgings lay a hardware basis and technology foundation.

According to reporter understanding, heavy company is the first in our country development of nuclear power plant of large forging heavy machine enterprise, in the 1980 s have been developed that 300 mw pressurized water reactor, 10 mw high temperature gas cooled reactor and nuclear power of large forgings. Since 2007 in the second generation and the second generation advanced nuclear power of large forgings research work, the completion of the pressure vessel, steam generator, reactor internals and a complete set of large forgings research task, the pile of large forgings inner component to fill the domestic blank. So far container class SA508 Gr. 3 large forgings accumulated delivery of more than 100 pieces, reactor internals stainless steel large forgings accumulated delivery up to 26 sets.

Based on the second generation and the second generation advanced nuclear power development process of large forgings have been experience, heavy company after nearly three years of hard work, in 2011 completed the AP1000 nuclear power and high temperature gas cooled reactor nuclear island main equipment in the development of large forgings, representative such as integration roof, takeover section, the barrel 1, large head, tube plate, the core support board has achieved better performance results, master the nuclear island main equipment of large forgings with the key, the core technology, formed a number of technical patents and papers, related technical level has reached or exceed the international advanced level.

It is reported that in the development process, the heavy companies to apply for the patent of invention and items, including two already authorized, practical new type 6 items, have been authorized. Write a standard 17, including national energy industry standard 12 sets (7 sets for Ed.), the enterprise standard five copies, and at the same time, published scientific papers and articles.

                                                                                                                                 This paper transfer from: China forging

 
 
前沿技术
Product display
News
Technology frontier
Customer message
     客户链接