JPS6242716B2 - - Google Patents
Info
- Publication number
- JPS6242716B2 JPS6242716B2 JP12804779A JP12804779A JPS6242716B2 JP S6242716 B2 JPS6242716 B2 JP S6242716B2 JP 12804779 A JP12804779 A JP 12804779A JP 12804779 A JP12804779 A JP 12804779A JP S6242716 B2 JPS6242716 B2 JP S6242716B2
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- clad steel
- clad
- thickness
- rolling
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 80
- 239000010959 steel Substances 0.000 claims description 80
- 239000000463 material Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000004021 metal welding Methods 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 24
- 239000010410 layer Substances 0.000 description 18
- 239000002360 explosive Substances 0.000 description 14
- 238000002788 crimping Methods 0.000 description 13
- 229910052759 nickel Inorganic materials 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 12
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 9
- 238000005098 hot rolling Methods 0.000 description 8
- 238000005253 cladding Methods 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は、改善された爆着圧延クラツド鋼板の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method of manufacturing explosive rolled clad steel sheet.
近年工業的に有用な方法として開発された爆発
圧着法を用いて、板厚の大きいクラツド鋼を製造
し、これをさらに数分の１ないし十数分の１の圧
下率で熱間圧延することにより、巾、長さの大き
いクラツド鋼板を製造する方法が行われつつある
この爆発圧着と、熱間圧延とを組み合せて製造
するいわゆる爆着圧延クラツド鋼板は、巾広い鋼
種に適用することが出来る。厚板や寸法、数量を
任意に選べるなど、爆発圧着法の有する特長をそ
のまま生かせることが期待されるが、これを加熱
して熱間圧延を行う過程で、クラツド材と母材鋼
板との間で、接合境界面を介して、両方の金属成
分が相互に拡散し、不都合な合金層を生成して、
クラツド材の有効板厚を減少したり、材料の組み
合せによつては脆弱な金属間化合物を生成して接
合性能を著しく損つており、爆発圧着法の有する
接合性能上の特長が、熱間圧延の過程で減殺され
ているのが現状である。 Using the explosive crimping method, which has been developed as an industrially useful method in recent years, a large clad steel plate is manufactured, and then hot rolled at a reduction rate of one-tenth to one-tenth. Due to this, methods of manufacturing clad steel plates with large widths and lengths are being used. So-called explosion rolled clad steel plates, which are manufactured by combining explosive crimping and hot rolling, can be applied to a wide range of steel types. . It is expected that the advantages of the explosive crimping method, such as being able to choose the thickness, size, and quantity of the material, can be utilized as is. Then, through the bonding interface, both metal components diffuse into each other, creating an unfavorable alloy layer,
The effective thickness of the clad material may be reduced, or depending on the combination of materials, brittle intermetallic compounds may be formed, significantly impairing bonding performance. The current situation is that the number of deaths is being reduced in the process.
この欠点を解消する方法として、例えば特開昭
51−37055号公報に示される「爆接クラツド鋼板
の圧延方法」、特開昭51−129848号公報に示され
る「複合金属板の圧延加工方法」、特開昭53−
26252号に公報に示される「チタンクラツド鋼板
の製造方法」、特開昭51−151653号公報に示され
る「薄手チタンクラツド鋼板の製造方法」などの
改善策が提案されてきたが、いまだ完全に技術確
立がされたとは言い難い。その他、クラツド材の
母材との間にニツケル、モリブデン、白金、金、
銀などを媒接材として挿入することが考えられ
る。この媒接材層の介在は、厚いと溶接施工を要
するクラツド鋼板では新たな不都合を惹起する恐
れがあるので、クラツド鋼板の接合境界面での相
互拡散を防止するのに必要最少厚さにおさえるべ
きである。このことから、媒接材層の厚さは数μ
ないし数十μで十分である。一方、媒接材は高級
金属の中から選ばれるが、これらは入手が容易で
ないので、その使用量は出来るだけ少くしなけれ
ば工業的価値を有しなくなる。 As a way to overcome this drawback, for example,
``Method for rolling explosion welded clad steel plates'' disclosed in JP-A No. 51-37055, ``Method for rolling composite metal plates'' disclosed in JP-A-51-129848, JP-A-53-
Improvement measures have been proposed, such as the ``Method for manufacturing titanium clad steel sheets'' disclosed in Publication No. 26252 and the ``Method for manufacturing thin titanium clad steel sheets'' disclosed in JP-A-51-151653, but the technology has not yet been completely established. It is difficult to say that this was done. In addition, nickel, molybdenum, platinum, gold,
It is conceivable to insert silver or the like as a junction material. If the intervening material layer is thick, it may cause new problems in clad steel plates that require welding, so the thickness should be kept to the minimum necessary to prevent mutual diffusion at the joint interface of clad steel plates. Should. From this, the thickness of the junction material layer is several microns.
A thickness of several tens of microns is sufficient. On the other hand, the junction material is selected from among high-grade metals, but since these are not easily available, the amount used must be kept as small as possible or they will have no industrial value.
媒接材の薄層を設ける方法としてメツキや溶射
などの方法が考えられるが、接合強度が低いた
め、爆発圧着により容易に剥離するので、有効な
方法になり得ない。 Methods such as plating and thermal spraying are conceivable as a method of providing a thin layer of the intermediate material, but since the bonding strength is low and it easily peels off due to explosive crimping, it cannot be an effective method.
本発明の方法は、爆発圧着法と圧延法の組み合
せで、所望の厚さの媒接材を挿入する改善された
爆着圧延クラツド鋼板の製造方法を提供する。 The method of the present invention provides an improved method for manufacturing explosive rolled clad steel sheets in which a desired thickness of intermediate bonding material is inserted by a combination of explosive crimping and rolling methods.
本発明の方法は、爆発圧着法と圧延法の組み合
せで、所望の薄さの媒接材をクラツド材と母材鋼
板の間に設ける改善された爆着圧延クラツド鋼板
を製造する方法に関し、媒接材を予め鋼板に従来
の公知の方法で接合して製造した媒接材のグラツ
ド鋼板をさらに媒接材として使用するので、常法
で爆発圧着の不可能な１mmに満たない薄い媒接材
の爆発圧着を可能にしたこと、媒接材のクラツド
鋼板の母材鋼板部は、目的とするクラツド鋼板の
母材鋼板と最終的に一体化するので、最終製品は
クラツド材と母材鋼板との間に媒接材の薄層を有
するクラツド鋼板に仕上がり、媒接材の介在が何
ら新たな問題を提起する恐れがないこと、など工
業的に透れた特徴を有する爆発圧延クラツド鋼板
の製造方法を提供するものである。 The method of the present invention relates to a method for producing an improved explosive-bonded rolled clad steel plate in which a desired thinness of the intermediate bonding material is provided between the clad material and the base steel plate by a combination of the explosive crimping method and the rolling method. Since we use a graded steel plate, which is a welding material made by bonding the welding material to a steel plate in advance using a conventional, well-known method, as a welding material, we can create a thin welding material of less than 1 mm that cannot be explosively crimped using conventional methods. The base steel plate of the clad steel plate used as the welding material is ultimately integrated with the base steel plate of the target clad steel plate, so the final product is made of cladding material and base steel plate. Manufacture of explosion-rolled clad steel plates that have industrially transparent features such as finished clad steel plates with a thin layer of bonding material in between, and the presence of intervening bonding materials without causing any new problems. The present invention provides a method.
本発明の概念を図面を用いて説明する。第１図
ａにおいて１は媒接材例えばニツケル、モリブデ
ン等を示し、２は鋼板を示す。この両金属板を従
来公知の方法例えば爆発圧着することにより第１
図ｂに示すクラツド鋼板３が得られる。このクラ
ツド鋼板３を熱間圧延すると第１図ｃに示すクラ
ツド鋼板４が得られる。第１図ｄに示すように、
このクラツド鋼板４を鋼板６の上に爆発圧着し、
さらにその上にクラツド材５例えば、ステンレス
スチール、キユプロニツケル等を爆発圧着すると
第１図ｅに示すクラツド材５、クラツド鋼板４及
び鋼板６からなるクラツド鋼板７を得る。ここで
爆発圧着は一層ずつ順次施行してもよいが、金属
同時に施行すれば効率がよい。このクラツド鋼板
７をさらに熱間圧延することにより第１図ｆに示
す通りの媒接材１″を介在したクラツド鋼板９が
得られる。クラツド鋼板７を熱間圧延する場合、
クラツド鋼板７を鋼板２′及び６のA3変態点以上
に加熱することにより最終製品となるクラツド鋼
板９においては、一体化して実質的に鋼板８とな
るので、目的とするクラツド材５′と母材鋼板８
との間に媒接材１″を介在したクラツド鋼板が得
られる。 The concept of the present invention will be explained using the drawings. In FIG. 1a, 1 indicates a welding material such as nickel or molybdenum, and 2 indicates a steel plate. The two metal plates are bonded together using a conventionally known method such as explosive compression bonding.
A clad steel plate 3 shown in Figure b is obtained. When this clad steel plate 3 is hot rolled, a clad steel plate 4 shown in FIG. 1c is obtained. As shown in Figure 1d,
This clad steel plate 4 is explosively crimped onto the steel plate 6,
Further, a cladding material 5, such as stainless steel or Cypronickel, is explosively bonded thereon to obtain a cladding steel plate 7 consisting of the cladding material 5, the cladding steel plate 4, and the steel plate 6 shown in FIG. 1e. Explosive crimping may be carried out one layer at a time, but it is more efficient if it is carried out simultaneously on the metal. By further hot rolling this clad steel plate 7, a clad steel plate 9 with a mediating material 1'' as shown in FIG. 1f can be obtained. When hot rolling the clad steel plate 7,
By heating the clad steel plate 7 to the A3 transformation point or higher of the steel plates 2' and 6, the final product clad steel plate 9 is made into a single piece, essentially becoming the steel plate 8. Base material steel plate 8
A clad steel plate is obtained with a welding material 1'' interposed between the two.
この爆着圧延クラツド鋼板の製造工程におい
て、クラツド鋼板７を熱間圧延してクラツド鋼板
９にする場合、圧延温度や圧延機の圧下能力から
数分の１ないし十数分の１の範囲で圧下する。従
つてクラツド鋼板９の媒接材１″の厚さを数μな
いし数十μにコントロールするためには、クラツ
ド鋼板４の媒接材１′の板厚は、爆発圧着に付随
した研摩作業や熱間圧延中に表面層が酸化を受け
ることによる減耗を考えると、少くとも百μ以上
数百μの範囲とし、かつ、爆発圧着作業を容易に
するために、クラツド鋼板４の板厚も数mmないし
十数mmにすべきである。尚、クラツド鋼板３から
クラツド鋼板４を製造する際には、媒接材１の板
厚を数mmないし十数mm、鋼板２の板厚を数十mmに
すれば、爆発圧着や圧延作業は容易である。な
お、クラツド鋼板３は媒接材金属の板と鋼板を爆
発圧着法、拡散接合法あるいは圧延法などで接合
する方法だけでなく金属の組合せによつては肉盛
法、鋳ぐるみ法で作つてもよく、クラツド鋼板４
は、これらクラツド鋼板を圧延して製造するだけ
でなく、薄い媒接じ金属板と薄い鋼板とを圧延で
接合しつつ直接所定厚さに製造したものでもよ
い。 In the manufacturing process of this explosion-bonded rolled clad steel plate, when the clad steel plate 7 is hot-rolled to form the clad steel plate 9, the rolling temperature is reduced within a range of one-tenth to one-tenth of the rolling temperature and the rolling capacity of the rolling mill. do. Therefore, in order to control the thickness of the welding material 1'' of the clad steel plate 9 to several microns to several tens of microns, the thickness of the welding material 1' of the clad steel plate 4 must be adjusted by the polishing work associated with explosive crimping. Considering the wear caused by oxidation of the surface layer during hot rolling, the thickness of the clad steel plate 4 should be set at least in the range of at least 100 μm or more and several hundred μm, and the thickness of the clad steel plate 4 should also be set at several times in order to facilitate the explosive crimping work. When manufacturing the clad steel plate 4 from the clad steel plate 3, the thickness of the welding material 1 should be several mm to more than ten mm, and the thickness of the steel plate 2 should be several tens of mm. mm, it is easy to perform explosive crimping and rolling work.In addition, the clad steel plate 3 can be used not only for joining metal plates and steel plates by explosive crimping, diffusion bonding, or rolling, but also for metal bonding. Depending on the combination, it may be made by overlaying method or casting method, and clad steel plate 4
In addition to being produced by rolling these clad steel plates, it may also be produced by directly manufacturing a thin medium-welded metal plate and a thin steel plate to a predetermined thickness while joining them by rolling.
実施例 １
厚さ３mm×幅1500mm×長さ2000mmのニツケル板
を60mm×1500mm×2000mmの軟鋼板に爆発圧着し、
これを10分の１の板厚に圧延して、6.3mm（ニツ
ケル層0.3mm、軟鋼層６mm）×1500mm×20000のク
ラツド鋼板にした。このクラツド鋼板の一部を切
り出し、切り出したクランド板の軟鋼面を94mm×
1500mm×3000mmの軟鋼板に爆発圧着し、さらにそ
のニツケル面上に20mm×1500mm×3000mmのステン
レス鋼板を爆着した。その後、該クラツド鋼板を
1200℃に加熱后10分の１の厚みに熱間圧延し、外
周不良部を切断除去して12mm（ステンレス層２mm
軟鋼層10mm）×2800mm×13000mmのステンレスクラ
ツド鋼板を製造した。このクラツド鋼板の接合境
界面を詳細に観察すると、厚さ約30μのニツケル
層の介在が認められ、ステンレス鋼と軟鋼板間の
相互拡散はニツケル層の介在に阻止されて生成し
ないことが確認された。このクラツド鋼板を用い
て２：１半楕円鏡板を冷間プレスで成形したが、
ニツケル層を介在させずに同様に熱間圧延したス
テンレスクラツド鋼を使用した場合には鏡板のナ
ツクル部にくびれが認められた。Example 1 A nickel plate with a thickness of 3 mm x width of 1500 mm x length of 2000 mm was explosively crimped onto a mild steel plate of 60 mm x 1500 mm x 2000 mm.
This was rolled to one-tenth the thickness to make a 6.3 mm (nickel layer: 0.3 mm, mild steel layer: 6 mm) x 1,500 mm x 20,000 clad steel plate. A part of this crud steel plate was cut out, and the mild steel surface of the cut plate was 94mm x
A 1500mm x 3000mm mild steel plate was explosively bonded, and a 20mm x 1500mm x 3000mm stainless steel plate was further explosively bonded onto the nickel surface. After that, the clad steel plate is
After heating to 1200℃, hot rolling to 1/10th the thickness, cutting off the defective parts on the outer periphery and making 12mm (stainless steel layer 2mm).
A stainless clad steel plate with a mild steel layer of 10mm) x 2800mm x 13000mm was manufactured. A detailed observation of the bonding interface between these clad steel plates revealed the presence of a nickel layer approximately 30μ thick, confirming that interdiffusion between the stainless steel and mild steel plates was inhibited by the nickel layer and did not occur. Ta. A 2:1 semi-elliptical head plate was formed using this clad steel plate by cold pressing.
When similarly hot-rolled stainless clad steel was used without the intervening nickel layer, constrictions were observed in the knuckle of the end plate.
実施例 ２
実施例１で製造したニツケルクラツド鋼板から
1500mm×2500mmを切り出し、これを64mm×1500mm
×2500mmの軟鋼板と10mm×1500mm×2500mmのキユ
プロニツケル板との間にはさんで同時に爆発圧着
した。このクラツド鋼板を950℃に加熱后５分の
１に熱間圧延したのち、外周不良部を切りとり16
mm（キユプロニツケル層２mm＋軟鋼板層14mm）×
2400mm×12000mmのキユプロニツケルクラツド鋼
板を得た。ミクロ観察の結果、接合境界面には約
60μのニツケル層が認められ、キユプロニツケル
に含有されるニツケル分の軟鋼板側への移動はニ
ツケル層に阻止されていた。このクラツド鋼板を
互いに溶接して立方形の貯槽を作つた。この溶接
部を調査したところ、溶接熱影響による剥離は認
められなかつたが、ニツケル層を介在させずに同
様に熱間圧延したキユプロクラツド鋼板を使用し
た場合には、溶接部近傍において剥離が認められ
た。Example 2 From the nickel clad steel sheet manufactured in Example 1
Cut out 1500mm x 2500mm and make it 64mm x 1500mm
They were sandwiched between a 2,500 mm x 2,500 mm mild steel plate and a 10 mm x 1,500 mm x 2,500 mm Cypronickel plate and were explosively crimped at the same time. After heating this clad steel plate to 950℃ and hot rolling it to one-fifth size, the defective part on the outer periphery was cut out.
mm (cypronickel layer 2mm + mild steel plate layer 14mm) x
A Cypronic clad steel plate of 2400 mm x 12000 mm was obtained. As a result of microscopic observation, approximately
A nickel layer with a thickness of 60 μm was observed, and the nickel layer contained in Cypronickel was prevented from migrating to the mild steel plate side. The clad steel plates were welded together to form a cubic storage tank. When this weld was investigated, no peeling due to the effects of welding heat was observed, but when a similarly hot-rolled Cuproclad steel plate without a nickel layer was used, peeling was observed near the weld. Ta.
第１図は、本発明の製造工程の１実施態様及び
各工程における成品の断面図である。
１……媒接材、２……鋼板、３……媒接材１と
鋼板２を爆発圧着したクラツド鋼板、４……上記
３を熱間圧延したのちのクラツド鋼板で１′，
２′は４を構成する媒接材及び鋼板をそれぞれ示
す。５……クラツド材、６……母材となる鋼板、
７……上記４，５，６を爆発圧着して一体化した
クラツド鋼板、９……本発明の方法によるクラツ
ド鋼板の最終製品を示し、５′はクラツド材、
７″は媒接材、８は上記２′と６とが熱間圧延によ
り一体化した母材鋼板を示す。
FIG. 1 is a cross-sectional view of one embodiment of the manufacturing process of the present invention and a product in each process. 1...Medging material, 2...Steel plate, 3...Clad steel plate obtained by explosively crimping the welding material 1 and steel plate 2, 4...Clad steel plate after hot rolling the above 3, 1',
2' indicates a welding material and a steel plate constituting 4, respectively. 5... Clad material, 6... Steel plate serving as base material,
7...A clad steel plate obtained by explosively crimping the above 4, 5, and 6, 9... A final product of a clad steel plate produced by the method of the present invention, 5' is a clad material,
7'' is a junction material, and 8 is a base steel plate in which the above-mentioned 2' and 6 are integrated by hot rolling.
Claims (1)
ラツド鋼板を、さらに母材鋼板とクラツド材との
間にはさみ爆発圧着して圧延を行い、実質的に母
材鋼板とクラツド材との間に媒接材の金属薄層を
設けることを特徴とするクラツド鋼板の製造方
法。1 A clad steel plate made of metal and steel used as a welding material is further sandwiched between a base steel plate and a clad material, explosively crimped and rolled, so that there is a substantial gap between the base steel plate and the clad material. A method for manufacturing a clad steel sheet, characterized by providing a thin metal layer of a metal welding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12804779A JPS5653888A (en) | 1979-10-05 | 1979-10-05 | Production of clad steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12804779A JPS5653888A (en) | 1979-10-05 | 1979-10-05 | Production of clad steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5653888A JPS5653888A (en) | 1981-05-13 |
| JPS6242716B2 true JPS6242716B2 (en) | 1987-09-09 |
Family
ID=14975185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12804779A Granted JPS5653888A (en) | 1979-10-05 | 1979-10-05 | Production of clad steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5653888A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0060083B1 (en) * | 1981-03-05 | 1985-05-29 | Asahi Kasei Kogyo Kabushiki Kaisha | Titanium clad steel plate |
| DE3135560A1 (en) * | 1981-09-08 | 1983-05-05 | Naučno-proizvodstvennoe ob"edinenie po technologii mašinostroenija CNIITMAŠ, Moskva | Explosion cladding process for metal workpieces |
-
1979
- 1979-10-05 JP JP12804779A patent/JPS5653888A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5653888A (en) | 1981-05-13 |
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