CN201009489Y

CN201009489Y - Zirconium steel composite board

Info

Publication number: CN201009489Y
Application number: CNU2007200343577U
Authority: CN
Inventors: 杭逸夫; 方雨; 王斌; 刘飞
Original assignee: NANJING BAOTAI SPECIAL MATERIAL CO Ltd
Current assignee: Nanjing Baotai Special Material Co.,Ltd.
Priority date: 2007-02-07
Filing date: 2007-02-07
Publication date: 2008-01-23
Anticipated expiration: 2017-02-07

Abstract

A zirconium steel clad plate is provided, wherein, a layer of transition layer titanium plate (6) is arranged between a zirconium steel layer (4) and a substrate steel plate (8); the thickness of the zirconium steel layer and the titanium plate layer is 1.5-4 mm, and the thickness of the substrate steel plate is 10-40 mm; the area of the clad plate is 0.5-8 m<2>. The utility model provides the R60702 material with the area greater than 0.5 m<2>, which is compounded with the steel plate at a time through the transition layer titanium plate, solving the problem that the R60702 with the area greater than 0.5 m<2> cannot be compounded with steel, meeting the needs of domestic chemical industry development.

Description

Zirconium clad steel plate

Technical field

The utility model relates to a kind of zirconium/steel composite board, especially uses multilayer composite sheet, relates to the composite metal plate of producing with the blast complex method, and it belongs to composite metal plate and makes the field.

Background technology

Zirconium belongs to rare metal, cost an arm and a leg, but it have the elevated temperature strength height, combination property such as corrosion resistance is good, machinability is good and thermal neutron absorption cross section is low, be the important structure material of nuclear reactor, in nuclear industry, obtain widely applying.Because it is very active, in the air or the aqueous solution, just can be easy to take place oxidation reaction under the room temperature, form the oxide-film of one deck densification, make zirconium have the ability of excellent antiacid, caustic corrosion, therefore recent application in chemical industry also increases gradually.But at home owing to be subjected to the restriction of material and price, application or less, so do not reduce under the prerequisite of service life of equipment and performance in assurance, adopt zirconium clad steel plate, not only made full use of properties of materials---by the multiple layer of zirconium as the contact corrosion medium, by the basic unit of steel, but also greatly reduce the cost of equipment as bearing load.

The R﹠D work of domestic zirconium/steel composite board because of the restriction that is subjected to multiple layer zirconium material (because of the restriction of domestic sponge zirconium and melting technique, so far still can't produce and to satisfy the zirconium sheet material that blast requires), until just begin to carry out the R﹠D work of zirconium/steel composite board from the U.S. import R60702 zirconium plate beginning of this century, find that through a large amount of tests R60702 material oxygen content is too high, greater than 0.1%, typical data is about 0.15%, thereby cause Tensile strength height, percentage elongation low, at monolithic zirconium plate area greater than 0.5m ²The time, impossible realization is directly compound with steel.The composite plate of domestic pressure containers is to rely on from U.S.'s import mostly at present, not only cost an arm and a leg, and the delivery cycle is very long, is unfavorable for applying of domestic zirconium/steel composite board equipment like this, is unfavorable for the development of national industry.Therefore develop zirconium/steel composite board, this will play significance to reduction device fabrication cost, shortening device fabrication cycle.

Summary of the invention

The problem that the utility model solved is, propose a kind of zirconium/steel composite board, especially use the multilayer zirconium clad steel plate, use the blast complex method to produce zirconium/steel composite board, to realize the requirement of production domesticization, satisfy the needs of China's chemistry and the development of related industry technological equipment.

The technical solution of the utility model is: zirconium/steel composite board, it is characterized in that between multiple layer zirconium plate 4 and basic unit's steel plate 8, increasing one deck transition zone titanium plate 6, and multiple layer zirconium plate 4 and transition zone titanium flaggy thickness are the steel plate 10～40mm of 1.5～4mm basic unit; Increasing one deck transition zone titanium plate makes zirconium/steel better compound.

Characteristics of the present utility model are: the blast of zirconium/steel composite board is compound to be the ground floor of zirconium plate as the contact corrosion medium, steel plate is as the 3rd layer of bearing load, the titanium plate is placed on the second layer to play the effect of transition, because of zirconium and titanium belong to congeners, below 850 ℃ the time, lattice structure all is α zirconium and α titaniums of close-packed hexagonal lattice, its mutual fusibleness is better, the intermetallic compound that blast process can not produce fragility can obtain the ductility that high bond strength is become reconciled, and the complex technique between titanium and the steel is domestic very ripe, and be used widely, therefore, by the effect that transition zone titanium plate is formed a connecting link, the realization of break-in directly compound between zirconium and the steel.By the composite methods of once exploding, make it to realize large-area continuous welding, satisfy the requirement of ASTM B898-2005 " active and refractory metal composite plate " standard, the applying rate is greater than 99%, minimum shear strength τ _b〉=137.9Mpa.

The utility model provides the R60702 material of area greater than 0.5m2, and is once-combined by increasing transition zone titanium plate and steel plate.Solved area greater than R60702 and the steel of 0.5m2 can't be compound problem, satisfied the needs of domestic chemical industrial development.

Description of drawings

The structural representation that Fig. 1 once explodes and installs for the utility model

1, detonator 2. explosives 3. protective layers 4. zirconium plates 5. back-up blocks 6. titanium plates 7. back-up blocks 8. substrates 9. bases

The specific embodiment

Specify embodiment of the present utility model below.

The mounting structure of composite plate as shown in Figure 1, the method of compound employing is one step completed method, constitute structure of the present utility model, it is the zirconium plate to be placed on topmost as ground floor when installing at the scene that blast is finished, the second layer is placed the titanium plate as intermediate layer, place steel plate as a bottom laminar substrate for the 3rd layer, for avoiding ground floor zirconium plate blast process bending angle excessive, the support interval of zirconium plate and titanium plate is slightly littler than the support interval between titanium plate and the steel plate.The zirconium plate thickness is δ 2mm, titanium plate thickness δ 2mm, plate width of cloth size is 4000mm * 2200mm, and (L * W), substrate thickness is a δ 28mm 16MnR steel plate, and the plate width of cloth is of a size of 4030mm * 2230mm (L * W), the main body explosive of selecting for use is a powdery emulsifying explosive, the parameter of powdery emulsifying explosive is: explosion velocity 〉=3200m/s, quick-fried hot 4015KJ/Kg, 2654 ℃ of quick-fried temperature, detonation pressure 519Mpa, density (0.95～1.25) g/cm ³, brisance (lead block compressed value) 〉=15mm.The uniform explosive in back is protected on the zirconium surface, and flashpoint is placed on zirconium compound plate center, i.e. two intersection of diagonal are as Fig. 1.Explode compound after, behind heat treatment, leveling, detect applying rate 99.8%, shear strength τ _b=205Mpa.Reach ASTM B898-2005 " active and refractory metal composite plate " A grade standard.

Once blast is when installing at the scene, and zirconium-titanium-steel is installed for three layers simultaneously, and the suitable support interval of reservation is arranged explosive between zirconium and titanium, titanium and the steel on the zirconium plate, and once Bao Zha method is directly produced zirconium clad steel plate.

Claims

1. zirconium clad steel plate is characterized in that being provided with one deck transition zone titanium (6) between zirconium flaggy (4) and basic unit's steel plate (8), and zirconium flaggy and titanium flaggy thickness are the steel plate 10～40mm of 1.5～4mm basic unit.

2. zirconium clad steel plate according to claim 1 is characterized in that composite plate area 0.5～8m ²