JPS6251163U - - Google Patents
Info
- Publication number
- JPS6251163U JPS6251163U JP14270685U JP14270685U JPS6251163U JP S6251163 U JPS6251163 U JP S6251163U JP 14270685 U JP14270685 U JP 14270685U JP 14270685 U JP14270685 U JP 14270685U JP S6251163 U JPS6251163 U JP S6251163U
- Authority
- JP
- Japan
- Prior art keywords
- furnace body
- rail
- outer cylinder
- steel bar
- cylinder
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims description 7
- 210000001015 abdomen Anatomy 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
Description
第１図乃至第４図は、この考案の実施例を示し
、第１図は正面図、第２図は平面図、第３図は側
面図、第４図は第２図のＡ―Ａ断面図、第５図ａ
，ｂ，ｃ，ｄは上記実施例の説明図であり第５図
ａは平面図、ｂはａのＡ―Ａ断面図ｃはａのＢ―
Ｂ断面図、ｄはａのＣ―Ｃ断面図、第６図は上記
実施例による具体例の加熱・冷却曲線図、第７図
は上記具体例のレール頭頂面硬さ分布図、第８図
は上記実施例による他の具体例の加熱・冷却曲線
図、第９図及び第１０図は従来の熱処理炉を示し
、第９図は正面図、第１０図は平面図、第１１図
は従来の熱処理炉により熱処理後のレール頭頂面
の硬さ分布図である。
１……レール、２……レール頭部、３……レー
ル腹部、４……レール底部、５……炉本体、６…
…バーナ取付口、７……排気口、８……底板、９
……測温筒、１０……外筒、１１……内筒。
Figures 1 to 4 show an embodiment of this invention; Figure 1 is a front view, Figure 2 is a plan view, Figure 3 is a side view, and Figure 4 is a cross section taken along line AA in Figure 2. Figure 5a
, b, c, and d are explanatory diagrams of the above embodiment; FIG.
B sectional view, d is CC sectional view of a, FIG. 6 is a heating/cooling curve diagram of the specific example according to the above embodiment, FIG. 7 is a rail top surface hardness distribution diagram of the above specific example, and FIG. 8 is a heating/cooling curve diagram of another specific example according to the above embodiment, FIGS. 9 and 10 show a conventional heat treatment furnace, FIG. 9 is a front view, FIG. 10 is a plan view, and FIG. 11 is a conventional heat treatment furnace. FIG. 3 is a hardness distribution diagram of the top surface of the rail after heat treatment in a heat treatment furnace. 1...Rail, 2...Rail head, 3...Rail abdomen, 4...Rail bottom, 5...Furnace body, 6...
...Burner installation port, 7...Exhaust port, 8...Bottom plate, 9
...Temperature measurement cylinder, 10...Outer cylinder, 11...Inner cylinder.
Claims (1)
ガス炎を使用する二つ割の炉本体と、該炉本体上
部に取付けた外筒及び先端を条鋼底部の上面に接
するように上記外筒の内側に螺合した内筒からな
る測温筒と、上記炉本体底部に開閉自在に取付け
た底板とを有する条鋼の熱処理炉。 A two-part furnace body that covers the bottom and abdomen of the rail-shaped steel bar and uses gas flame as a heat source, an outer cylinder attached to the top of the furnace body, and an inner side of the outer cylinder so that the tip is in contact with the top surface of the bottom of the steel bar. A heat treatment furnace for long steel, comprising a temperature measuring cylinder consisting of an inner cylinder screwed into the body, and a bottom plate attached to the bottom of the furnace body so as to be openable and closable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14270685U JPS6342113Y2 (en) | 1985-09-20 | 1985-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14270685U JPS6342113Y2 (en) | 1985-09-20 | 1985-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6251163U true JPS6251163U (en) | 1987-03-30 |
| JPS6342113Y2 JPS6342113Y2 (en) | 1988-11-04 |
Family
ID=31051685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14270685U Expired JPS6342113Y2 (en) | 1985-09-20 | 1985-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342113Y2 (en) |
-
1985
- 1985-09-20 JP JP14270685U patent/JPS6342113Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342113Y2 (en) | 1988-11-04 |