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真空變壓（可控氣氛）大型井式滲氮爐（生產線）

Vacuum variable pressure (controllable atmosphere) large well nitriding furnace (production line)

 應用/ apply:
PJ-井式真空脈沖滲氮爐屬標準節能環保型周期作業氮化電爐。主要供各種鋼制機械零件、汽車配件，模具材料，不銹鋼材料進行滲氮、，氮碳共滲、前氧化、后氧化、氧氮共滲等多種熱處理工藝之用

PJ- well type vacuum pulse nitriding furnace is a standard energy saving and environment friendly periodic operation nitriding furnace. It is mainly used for various heat treatment processes, such as nitriding, nitrocarburizing, pre-oxidation, post-oxidation, oxygen-nitriding and so on, for all kinds of steel mechanical parts, auto parts, die materials, stainless steel materials, nitriding, nitrocarburizing, pre-oxidation, post-oxidation, oxygen-nitriding and so on.。
特點 /characteristic:
1. 滲速快 /Fast seepage speed
滲氮工藝是在低真空狀態下進行爐內壓力周期式變化，氣氛保持新鮮、活性，氮勢也呈周期式變化，使一段氮化具有二、三段氮化的優點，無需采用二、三段氮化，加快了氮化速度

The nitriding process is to change the pressure cycle in the furnace under the condition of low vacuum, the atmosphere keeps fresh, the activity, the nitrogen potential also shows the periodic change, causes the first stage nitriding to have the two, the third stage nitriding the advantage, does not need to adopt the second, the third stage nitriding, accelerates the nitriding rate.

2. 適應性廣、滲層均勻

Wide adaptability and uniform seepage layer

3.  工件有盲孔、T型面或工件工作面在極窄的狹縫里，對于傳統的正壓氮化爐而言，這不利于新鮮氣氛的更換和擴散，這些部位的氮化效果不理想，真空脈沖變壓技術使爐氣自動擴散到罐內各處，無死角。盲孔、毛孔及模具狹縫處工作面也能得到所需滲層

The workpiece has blind hole, T-shaped surface or workpiece working face is in a very narrow slit, which is not conducive to the replacement and diffusion of fresh atmosphere for the traditional positive pressure nitriding furnace. The nitriding effect of these parts is not ideal. Vacuum pulse pressure conversion technology makes the furnace gas automatically spread to all parts of the tank without dead angle. The required seepage layer can also be obtained in the working face at the blind hole, pore and die slit.

3. 裝爐量大、加工成本低

The charging capacity is large and the processing cost is low.
采用真空脈沖變壓技術，在低真空和變壓的環境下完成滲氮（氮化）工藝過程，新鮮氣氛可滲透到爐罐內任一角落，所以工件可以密裝，使裝爐量大大增加，同時，該爐密封性，保溫性能好，從而顯著降低處理成本

Vacuum pulse pressure conversion technology is used to complete nitriding (nitriding) process in low vacuum and pressure changing environment. The fresh atmosphere can penetrate into any corner of the furnace tank, so the workpiece can be packed closely, which greatly increases the charging capacity. At the same time, the furnace has good sealing and heat preservation performance, thus significantly reducing the treatment cost.

3. 表面摩擦系數小

Small surface friction coefficient
因真空脈沖變壓技術使工作的表面氮化物滲層極為致密，故表面摩擦系數小

The surface-nitride layer of the working surface is very dense due to the vacuum pulse transformation technology, so the surface friction coefficient is small.。

4. 脆性低 Low brittleness

爐壓的周期性變化，使爐內氣氛的氮勢產生周期的變化，在加快滲速的同時，能抑制脆性相（Fe2N）的出現，并有助于降低脆性，有效地避免了工作過程出現的剝落（脫皮）現象

The periodic change of furnace pressure makes the nitrogen potential of furnace atmosphere change periodically. While speeding up the infiltration rate, it can inhibit the emergence of brittle phase (Fe2N), help to reduce brittleness, and effectively avoid the phenomenon of peeling (peeling) in the working process.

5. 工藝穩定 Process stability
爐內氣氛均勻可控，爐溫均勻，從而保證工藝穩定性，提高和保證了工作的滲氮質量

The atmosphere in the furnace is uniform and controllable, and the furnace temperature is uniform, so as to ensure the stability of the process and improve and ensure the nitriding quality of the work.

5. 環保 /environmental protection

爐子密封性好，廢氣經真空泵抽出經過高溫裂解排出，屬環保產品

The furnace has good sealing property, and the exhaust gas is extracted by vacuum pump and discharged by high temperature cracking. It is an environmental protection product.

特點 /characteristic.

1； 采用全波紋馬弗和導流筒、強對流循環風機等特殊的對流循 環系統，提高了爐內熱交換能力和爐溫及氣氛的均勻性

The heat exchange capacity of the furnace and the uniformity of the furnace temperature and the atmosphere are improved by adopting a special convection circulation system such as a full-corrugated muffle and a guide cylinder and a strong convection circulating fan.

2； 控制系統采用德國品牌供應商保證產品質量均勻一直穩定

The control system adopts the top German brand to ensure the product quality is uniform and stable all the time.

3； PE氮化專家系統可離線模擬氮化工藝、在線計算氮化層深度及硬度梯度

PE nitriding expert system can simulate nitriding process offline and calculate the depth and hardness gradient of nitriding layer on line.

4； 氫探頭氮勢測量系統，質量流量控制系統保證氮化工藝在線實時控制

Hydrogen probe nitrogen potential measurement system, mass flow control system to ensure on-line real-time control of nitriding process。

5； 氮化后可進行快速氣冷，提高氮化層質量

Rapid gas cooling can be carried out after nitriding to improve the quality of nitriding layer.。

6； 整體設計按照歐洲安全標準

Overall design in accordance with European security standards。

7； 采用一體化集成可變程序控制器，集爐溫控制、氮勢控制、機電動作、聯鎖、報警為一體，保障了設備運行的高可靠性

The integrated variable program controller is adopted, which integrates furnace temperature control, nitrogen potential control, electromechanical action, interlocking and alarm, which ensures the high reliability of the equipment operation.

8； 滲氮過程通過對溫度、Kn、Kc、Ko等參數進行準確控制，以達到對氮化物的形態和組織實 現動態控制

Through the accurate control of temperature, Kn,Kc,Ko and other parameters in nitriding process, the dynamic control of nitride morphology and microstructure can be achieved.。

9； 采用上位機系統，可進行工藝程序編制、工藝運行操作控制、工藝過程狀態顯示、工藝運行記 錄，報警信息記錄等系統管理

The upper computer system can be used for process programming, process operation control, process state display, process operation recording, alarm information recording and other system management.。

配置選擇/Configure select:

爐型結構：井室

Furnace structure: well chamber

真空泵組和真空計：進口/高品質國產

Vacuum pump group and vacuum gauge: imported/ high-quality domestic

真空壓力：預抽真空

Vacuum pressure: pre-pumping vacuum

PLC:西門子/歐姆龍/三菱

PLC: Siemens/ Omron/Mitsubishi 

溫控儀表：歐陸/導電

Temperature control instrument: European/Shimaden

熱電偶： N型分度號/滲氮專用

N-type grade number / nitriding special purpose

記錄儀：有紙記錄儀；無紙記錄儀

Recorder: paper  recorder ；paperless recorder

人機界面：模擬屏/計算機觸摸屏

Man-machine interface: analog screen/computer touch screen

電器元件：高品質國產/施耐德/西門子

Electrical components: high quality domestic/ Schneider/Siemens

產品 規格/ product specifications：

注：特殊規格要求可根據客戶要求定制

Note: special specification requirements can be customized according to customer requirements

以下參數可根據工藝要求調整，不作為驗收依據，具體以技術方案和協議為準

The following parameters may be adjusted according to the process requirements and shall not be used as the basis for acceptance, depending on the technical scheme and agreement