JPH0339888A - Atmosphere heat treatment method and its device - Google Patents
Atmosphere heat treatment method and its deviceInfo
- Publication number
- JPH0339888A JPH0339888A JP17319189A JP17319189A JPH0339888A JP H0339888 A JPH0339888 A JP H0339888A JP 17319189 A JP17319189 A JP 17319189A JP 17319189 A JP17319189 A JP 17319189A JP H0339888 A JPH0339888 A JP H0339888A
- Authority
- JP
- Japan
- Prior art keywords
- conveyor belt
- atmosphere
- conveyor
- heat treatment
- atmosphere gas
- 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 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 13
- 239000012298 atmosphere Substances 0.000 title abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 2
- 239000001569 carbon dioxide Substances 0.000 claims 2
- 239000000835 fiber Substances 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000000356 contaminant Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004917 carbon fiber Substances 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012299 nitrogen atmosphere Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 238000005219 brazing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、炭素質又は黒鉛質のコンベアーベルトを用い
た雰囲気加熱処理方法とその装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an atmospheric heat treatment method using a carbonaceous or graphite conveyor belt, and an apparatus therefor.
（ロ）問題点とその解決方法
本発明の好適なる実施例を示す第１図で今までの問題点
とこの発明による解決方法を説明すると、この種のコン
ベアーベルトは熱処理品６を炭素質又は黒鉛繊維強化炭
素製のコンベアーベルト３に積載して不活性ガス雰囲気
の加熱室ｌで高温加熱焼成し、冷却室２で冷却後に送り
出す熱処理装置において循環使用される。(b) Problems and their solution method The conventional problems and the solution method according to the present invention will be explained with reference to FIG. 1 showing a preferred embodiment of the present invention. It is loaded on a conveyor belt 3 made of graphite fiber reinforced carbon, heated and fired at high temperature in a heating chamber 1 in an inert gas atmosphere, cooled in a cooling chamber 2, and sent out for circulation in a heat treatment device.
ところが、一般に炭素又は黒鉛材は２０〜３０％の気孔
率があって、空気中からも酸素、水蒸気その他のガスや
蒸気を吸着する。このコンベアーベルトは循環して加熱
室で加熱されると吸着した酸素と燃焼して消耗し、また
吸着物は放出されて処理品を汚染する問題点がある。However, carbon or graphite materials generally have a porosity of 20 to 30% and adsorb oxygen, water vapor, and other gases and vapors even from the air. When this conveyor belt circulates and is heated in a heating chamber, it burns with the adsorbed oxygen and is consumed, and the adsorbed substances are released and contaminate the processed products.
本発明は、上記したような吸着物が昇温すると放出され
る性質を利用して、コンベアーペルトノ循環回路中の処
理品のａ載部の直前で該コンベアーベルトを加熱して角
染物質を放出除去する雰囲気熱処理方法と装置を提供す
るものである。The present invention takes advantage of the above-mentioned property of adsorbed matter being released when the temperature rises, and heats the conveyor belt immediately before the a loading area of the processed product in the conveyor perton circulation circuit to dye the horn dye. The present invention provides a method and apparatus for atmospheric heat treatment for release and removal.
ちなみに１人造黒鉛は室温から１８００℃まで加熱する
と、Ｈ７が１６％、Ｃｏ、：１３％、ＣＯ：５６％、Ｎ
？：１４％からなる組成のガスを放出する。By the way, when artificial graphite is heated from room temperature to 1800℃, H7 is 16%, Co: 13%, CO: 56%, N
? : Releases a gas with a composition of 14%.
この場合の放出量は約５００ ＶＬｆＬ／ｇにも及び、
この放出量はほぼ加熱温度に比例する。１８００℃では
１０００℃のときの約２倍の放出量がある。In this case, the amount released is about 500 VLfL/g,
This amount of release is approximately proportional to the heating temperature. At 1800°C, the amount released is approximately twice that at 1000°C.
本発明に用いられる炭素質又は黒鉛ｍ！Ｉ強化炭製のコ
ンベアーベルトは、その製造に使用される炭素又は黒鉛
質の繊維、これをｔ１ｉ着するための樹脂の種類、加え
る炭素粉の種類、焼成方法とその温度などにより、表面
の状態や気孔率が異なり。Carbonaceous or graphite used in the present invention m! The surface condition of conveyor belts made of I-reinforced carbon varies depending on the carbon or graphite fibers used in its manufacture, the type of resin used to attach it, the type of carbon powder added, the firing method and temperature, etc. and porosity are different.
吸着量に差異が生ずるので、処理品の要求に応じた吸着
物質除去のためにコンベアーベルトラ加！する温度を選
ぶ必要があることは勿論である。Since there is a difference in the amount of adsorption, a conveyor belt truck is added to remove adsorbed substances according to the requirements of the processed product! Of course, it is necessary to select the temperature to use.
本発明によるコンベアーベルトをなす繊維強化炭素から
なるガス又は蒸気を加熱除去する方法は簡易で優れた効
果を看する方法で、そのための設備も簡単である長所が
ある。The method of heating and removing the gas or steam made of fiber-reinforced carbon constituting the conveyor belt according to the present invention is a simple and highly effective method, and has the advantage that the equipment for the method is simple.
なお、今までに公知の鋼製のコンベアーベルトを予＠加
熱する場合等と本発明とはその目的と効果を全く異にし
、それらとは同一視し得ないものであることを強調して
おく。It should be noted that the purpose and effects of the present invention are completely different from the previously known cases of preheating a steel conveyor belt, and cannot be equated with them. .
（ハ）実施例
以下、本発明の実施例をその方法を達成するめにｔｌｆ
適な一装置を示す第１図にについて更に説明する。(c) Examples Hereinafter, examples of the present invention will be described in order to achieve the method.
Reference will now be made further to FIG. 1, which shows one suitable device.
この実施例は、ステンレス鋼のニッケルろうによるろう
付は炉である。In this embodiment, stainless steel is brazed with nickel braze in a furnace.
組ヴてられたろう付は処理品６を炭素繊維強化炭素で製
作し、ローラーメツシュベルトコンベアー３に積載して
、窒素に約３％の水素を混合した雰囲気ガスの加熱室１
で昇温ろう付は後、冷却室２で冷却の後に取出すもので
ある。For the assembled brazing process, the treated product 6 is made of carbon fiber reinforced carbon, loaded onto a roller mesh belt conveyor 3, and heated in a heating chamber 1 with an atmospheric gas containing about 3% hydrogen mixed with nitrogen.
After the temperature-raising brazing, it is cooled in the cooling chamber 2 and then taken out.
該メツシュベルトコンベアー３は、ピッチを含浸させ、
３００℃で不融化処理を行ない、その後に６００℃→１
ｏｏｏ℃を経て２５００℃に窒素雰囲気中で加熱して作
られた炭素Ｍ＆雑束により構成されたものである。また
、上記した雰囲気ガスは雰囲気ガス入口７より炉中に送
られ、雰囲気ガス排出口８より排気される。The mesh belt conveyor 3 is impregnated with pitch,
Perform infusibility treatment at 300℃, then 600℃→1
It is composed of carbon M & miscellaneous bundles made by heating to 2500° C. in a nitrogen atmosphere through 00° C. Further, the above-mentioned atmospheric gas is sent into the furnace through the atmospheric gas inlet 7 and exhausted through the atmospheric gas exhaust port 8.
ろう付加熱室の温度は１１５０℃、雰囲気ガス量は３０
ｇ＋３／ｈ、加熱時間を２０分間とした。The temperature of the brazing heat chamber is 1150℃, and the amount of atmospheric gas is 30℃.
g+3/h, and the heating time was 20 minutes.
まず、コンベアーベルト加熱器５を使用しないでろう付
（すを実施したところ、雰囲気ガス量３０ｍ”／ｈでは
ろう付は処理品に緑色酸化膜ができ、ろう付は不良とな
った。First, when brazing was performed without using the conveyor belt heater 5, a green oxide film was formed on the processed product at an atmospheric gas flow rate of 30 m''/h, and the brazing was defective.
雰囲気ガス量を増加しながらテストを繰返し、約６０ｍ
”／ｈでろう付けできた。The test was repeated while increasing the amount of atmospheric gas, and the distance was approximately 60 m.
”/h I was able to braze.
次に、コンベアーベルトの循環復回路上で処理品がコン
ベアーベルトに積載される位置の近傍に設けた加熱器５
を運転して、約４５０℃にコンベアーを加熱した後に、
このコンベアーに処理品を載せてろう付けすると、雰囲
気ガス３０ｍ”／ｈで光輝状態の良好なろう付けができ
た。Next, a heater 5 is installed near the position where the processed products are loaded onto the conveyor belt on the recirculation circuit of the conveyor belt.
After heating the conveyor to approximately 450°C,
When the treated products were placed on this conveyor and brazed, brazing with good brightness was achieved using an atmospheric gas of 30 m''/h.
以上のように、加熱器５であらかじめコンベアーベルト
を加熱して吸着された汚染物質を放出させた後ろう付け
を行なうことで、良好な雰囲気が維持された。As described above, a good atmosphere was maintained by heating the conveyor belt in advance with the heater 5 to release the adsorbed contaminants and then performing brazing.
（ニ）発明の効果
一ヒ述の如く、本発明によればコンベアーベルトを加熱
することで、吸着汚染物質をコンベアーベルトの繊維強
化炭素から放出除去ｊ２て供給雰囲気ガスを大きく節減
することができ、高温下でも潰れた耐熱性と卓越した抗
張力を有する繊維強化炭素が雰囲気熱処理用のコンベア
ーベルトにも実用的に始めて使用できることとなり、そ
の効果は誠に大きい。(D) Effects of the Invention As mentioned above, according to the present invention, by heating the conveyor belt, the adsorbed pollutants can be released and removed from the fiber-reinforced carbon of the conveyor belt, and the supply atmosphere gas can be greatly reduced. For the first time, fiber-reinforced carbon, which has excellent heat resistance and excellent tensile strength even at high temperatures, can be used practically in conveyor belts for atmospheric heat treatment, and its effects are truly significant.
第１図は本発明の実施例を示す雰囲気熱処理炉の説明図
である。
符号説明
ｉ−加ｓ室 ２−冷却室 ３−コンベアーベルト４−コ
ンベアー駆動部
５−コンベアー加熱器
一処理品
７−雰囲気ガス入口
８−雰囲気ガ
ス排出口
特
許
出
願
人
関東冶金工業株式会社
代
理
人FIG. 1 is an explanatory diagram of an atmospheric heat treatment furnace showing an embodiment of the present invention. Code Description: i - Gas chamber 2 - Cooling chamber 3 - Conveyor belt 4 - Conveyor drive unit 5 - Conveyor heater - Processed product 7 - Atmospheric gas inlet 8 - Atmospheric gas outlet Patent applicant Kanto Yakin Kogyo Co., Ltd. Agent
Claims (2)
り処理品を搬送して該処理品を該雰囲気炉中で雰囲気熱
処理する方法において、該コンベアーベルトを炭素質又
は黒鉛質繊維強化炭素で作り、かつ該コンベアーベルト
の循環回路で処理品の積載位置直前において加熱して、
該コンベアーベルトに吸着された酸素、水蒸気、炭酸ガ
スその他の処理品を汚染するガス又は蒸気を除去するこ
とを特徴とする雰囲気熱処理方法。(1) In a method of transporting a processed product by a conveyor belt that circulates through an atmospheric furnace and subjecting the processed product to atmospheric heat treatment in the atmospheric furnace, the conveyor belt is made of carbonaceous or graphitic fiber-reinforced carbon, and heating in the circulation circuit of the conveyor belt just before the loading position of the processed products,
An atmospheric heat treatment method characterized by removing oxygen, water vapor, carbon dioxide gas, and other gases or vapors that contaminate the processed products adsorbed on the conveyor belt.
トを装着した雰囲気熱処理装置であって、該コンベアー
ベルトの循環回路中でかつ処理品の積載位置に近接した
ところに該コンベアーベルトを加熱して該ベルトに吸着
された酸素、水蒸気、炭酸ガスその他の処理品を汚染す
るガス又は蒸気を該コンベアーベルトから除去する手段
を設けたことを特徴とする雰囲気熱処理装置。(2) An atmospheric heat treatment device equipped with a conveyor belt made of carbonaceous or graphite fiber-reinforced carbon, which heats the conveyor belt in the circulation circuit of the conveyor belt and near the loading position of the processed products. An atmospheric heat treatment apparatus characterized in that a means is provided for removing from the conveyor belt oxygen, water vapor, carbon dioxide gas, and other gases or vapors that contaminate the processed products adsorbed on the belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319189A JPH0339888A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319189A JPH0339888A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339888A true JPH0339888A (en) | 1991-02-20 |
| JPH0411787B2 JPH0411787B2 (en) | 1992-03-02 |
Family
ID=15955784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17319189A Granted JPH0339888A (en) | 1989-07-05 | 1989-07-05 | Atmosphere heat treatment method and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06347424A (en) * | 1993-06-08 | 1994-12-22 | Hamamatsu Photonics Kk | Soft x-ray nondestructive examination device |
| JP2005254276A (en) * | 2004-03-11 | 2005-09-22 | Kanto Yakin Kogyo Co Ltd | Method for brazing product containing stainless steel part |
| JP2016520790A (en) * | 2013-05-08 | 2016-07-14 | サンドヴィック マテリアルズ テクノロジー ドイチュラント ゲーエムベーハー | Conveyor furnace |
-
1989
- 1989-07-05 JP JP17319189A patent/JPH0339888A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06347424A (en) * | 1993-06-08 | 1994-12-22 | Hamamatsu Photonics Kk | Soft x-ray nondestructive examination device |
| JP2005254276A (en) * | 2004-03-11 | 2005-09-22 | Kanto Yakin Kogyo Co Ltd | Method for brazing product containing stainless steel part |
| JP4569860B2 (en) * | 2004-03-11 | 2010-10-27 | 関東冶金工業株式会社 | Heat brazing method for products containing stainless steel parts |
| JP2016520790A (en) * | 2013-05-08 | 2016-07-14 | サンドヴィック マテリアルズ テクノロジー ドイチュラント ゲーエムベーハー | Conveyor furnace |
| US10480860B2 (en) | 2013-05-08 | 2019-11-19 | Sandvik Materials Technology Deutschland Gmbh | Conveyor furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411787B2 (en) | 1992-03-02 |
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