WO2024077679A1 - 一种非调钢活塞的控冷工艺及其设备 - Google Patents

一种非调钢活塞的控冷工艺及其设备 Download PDF

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Publication number
WO2024077679A1
WO2024077679A1 PCT/CN2022/129142 CN2022129142W WO2024077679A1 WO 2024077679 A1 WO2024077679 A1 WO 2024077679A1 CN 2022129142 W CN2022129142 W CN 2022129142W WO 2024077679 A1 WO2024077679 A1 WO 2024077679A1
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Prior art keywords
controlled cooling
piston
cooling
controlled
box
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PCT/CN2022/129142
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English (en)
French (fr)
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胡晨
梅吟飞
徐朗
沈扬
毕红
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浙江跃进机械有限公司
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Publication of WO2024077679A1 publication Critical patent/WO2024077679A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K29/00—Arrangements for heating or cooling during processing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

Definitions

  • the invention relates to the field of pistons, and in particular to a controlled cooling process and equipment for a non-adjustable steel piston.
  • the piston is a reciprocating part in the cylinder block of a car engine.
  • the basic structure of a piston can be divided into the top, the head and the skirt.
  • the top of the piston is the main part of the combustion chamber, and its shape is related to the type of combustion chamber selected.
  • Gasoline engines mostly use flat-top pistons, which have the advantage of a small heat absorption area. During the preparation of the piston, the temperature needs to be controlled at each stage to ensure the quality of the piston.
  • the object of the present invention is to provide a controlled cooling process and equipment for a non-adjustable steel piston, so as to solve the problems raised in the above-mentioned background technology.
  • a controlled cooling process for a non-adjustable steel piston comprising the following steps:
  • Step 1 Test the temperature of the forged piston. The product is qualified when the temperature is ⁇ 930°C.
  • Step 2 Place qualified products on the cooling control mechanism, and control the cooling control outlet temperature of the piston forging to about 700 ⁇ 20°C by adjusting the air volume of the fan and the speed of the conveyor belt;
  • Step 3 Place the piston forging in step 2 in an air cooling mechanism to cool the forging slowly, and control the outlet temperature of the air cooling section of the piston forging to 650 ⁇ 20°C by adjusting the conveyor belt speed;
  • Step 4 Place the piston forging in step 3 in a heat preservation mechanism, and keep the temperature of the piston forging at 600 ⁇ 10°C through a heating furnace for heat preservation and cooling;
  • Step 5 Make the piston forging leave the heat preservation mechanism, and its outlet temperature is lower than 600°C.
  • the processing times of the cooling control mechanism, air cooling mechanism and heat preservation mechanism in steps two, three and four are 180-300S, 120-240S and 300-600S respectively.
  • a device for a controlled cooling process of a non-adjustable steel piston comprises a base, wherein the base is in a concave shape, the heights of the left and right sides are greater than the middle height, a controlled cooling mechanism is fixedly arranged at the left upper end of the base, a heat preservation mechanism is fixedly arranged at the right upper end of the base, and an air cooling mechanism is fixedly arranged at the middle upper end of the base, the air cooling mechanism connects the controlled cooling mechanism and the heat preservation mechanism, so that the piston can be processed in the controlled cooling mechanism first, so that the piston reaches the required hardness and required performance through controlled cooling, and then naturally cooled by the air cooling mechanism, so that the product is slowly cooled to a specified temperature, and then enters the heat preservation mechanism, prolonging the time the piston is at the specified temperature, so that the structure of the piston is transformed as much as possible, and the metallographic structure of the final piston is guaranteed.
  • the cooling mechanism includes a cooling box fixed to the upper left end of the base, the cooling box being a hollow structure, with square openings on the left and right sides of the cooling box to connect the left and right ends of the cooling box, two identical hair dryers are fixed to the upper inner end of the cooling box, the air volume of the hair dryers is adjustable, an infrared detector is fixed to the upper right end of the cooling box, a control panel is fixed to the upper outer end of the cooling box, the control panel and the infrared detector are connected by electric wires, so as to monitor the low temperature or over-temperature of the product.
  • two identical blocking blocks are fixedly provided on the left inner wall of the cold control box and the right outer wall of the cold control box, respectively; a blocking shaft is rotatably provided between the two blocking blocks, and a blocking plate is fixedly provided on the blocking shaft, thereby blocking the openings on the left and right sides of the cold control box, thereby reducing temperature changes.
  • the air cooling mechanism comprises four identical support rods fixed at the middle upper end of the base, a pulley is rotatably provided between the front and rear support rods, an air cooling conveyor belt is connected between the pulleys, and the speed of the air cooling conveyor belt is adjustable.
  • an extension plate is fixedly provided at the upper ends of the two support rods on the left side
  • a cooling control shaft is rotatably provided between the two extension plates
  • a cooling control pulley is fixedly provided on the cooling control shaft
  • the same cooling control shaft and cooling control pulley are rotatably provided on the left side of the cooling control box
  • a cooling control conveyor belt is connected between the two cooling control pulleys, the cooling control conveyor belt passes through the left and right ends of the cooling control box, and the speed of the cooling control pulley is adjustable.
  • the insulation mechanism includes an insulation box fixed to the upper right end of the base.
  • the insulation box is a hollow structure and also has a square opening.
  • the conveyor belt passes through the left and right ends, and a baffle is provided at the opening to reduce temperature changes.
  • the present invention first detects the temperature of the piston and passes the qualified piston through the controlled cooling section and the air cooling section, so that the temperature of the piston passing through can be controlled. At the same time, the air volume of the internal fan and the transmission speed can be adjusted, so that the forged piston can be quickly cooled to the required temperature, and the piston can reach the required hardness and performance requirements through controlled cooling.
  • the present invention prolongs the time the piston is at a specified temperature through the heat preservation section, so that the structure of the piston is transformed as much as possible, thereby ensuring the metallographic structure of the final piston.
  • FIG1 is a schematic diagram of the overall three-dimensional structure of a device for a controlled cooling process of a non-adjustable steel piston according to the present invention
  • Fig. 2 is a schematic diagram of the cross-sectional view at A-A in Fig. 1 of the present invention
  • Fig. 3 is a schematic diagram of the cross-sectional view at B-B in Fig. 1 of the present invention.
  • Figure 1 is a front view of the device of the present invention, and the directions shown in Figure 1 are consistent with the front, back, left, right, up, and back directions of the front view direction of the device of the present invention.
  • an embodiment of the present invention provides: a controlled cooling process and equipment for a non-adjustable steel piston, comprising the following steps:
  • Step 1 Test the temperature of the forged piston. The product is qualified when the temperature is ⁇ 930°C.
  • Step 2 Place qualified products on the cooling control mechanism, and control the cooling control outlet temperature of the piston forging to about 700 ⁇ 20°C by adjusting the air volume of the fan and the speed of the conveyor belt;
  • Step 3 Place the piston forging in step 2 in an air cooling mechanism to cool the forging slowly, and control the outlet temperature of the air cooling section of the piston forging to 650 ⁇ 20°C by adjusting the conveyor belt speed;
  • Step 4 Place the piston forging in step 3 in a heat preservation mechanism, and keep the temperature of the piston forging at 600 ⁇ 10°C through a heating furnace for heat preservation and cooling;
  • Step 5 Make the piston forging leave the heat preservation mechanism, and its outlet temperature is lower than 600°C.
  • the processing time of the cooling mechanism, the air cooling mechanism and the heat preservation mechanism in steps two, three and four are 180-300S, 120-240S and 300-600S respectively.
  • a controlled cooling process and equipment for a non-adjustable steel piston comprising a base 11, wherein the base 11 is in a "concave" shape, with the heights of the left and right sides greater than the middle height, a controlled cooling mechanism fixedly disposed at the left upper end of the base 11, a heat preservation mechanism fixedly disposed at the right upper end of the base 11, and an air cooling mechanism fixedly disposed at the middle upper end of the base 11, wherein the air cooling mechanism connects the controlled cooling mechanism and the heat preservation mechanism, so that the piston can be processed in the controlled cooling mechanism first, so that the piston reaches the required hardness and required performance through controlled cooling, and then naturally cooled through the air cooling mechanism, so that the product is slowly cooled to a specified temperature, and then enters the heat preservation mechanism, prolonging the time the piston is at the specified temperature, so that the organization of the piston is transformed as much as possible, and ensuring the metallographic organization of the final piston.
  • the cooling mechanism includes a cooling box 19 fixed to the upper left end of the base 11, the cooling box 19 is a hollow structure, and the left and right sides of the cooling box 19 have square openings to connect the left and right ends of the cooling box 19, two identical hair dryers 20 are fixed to the upper inner end of the cooling box 19, and the air volume of the hair dryer 20 is adjustable, an infrared detector 21 is fixed to the upper right end of the cooling box 19, and a control panel 22 is fixed to the upper outer end of the cooling box 19, and the control panel 22 is connected to the infrared detector 21 by electric wires, so as to monitor the low temperature or over-temperature of the product.
  • two identical blocking blocks 24 are fixedly provided on the left inner wall of the cold control box 19 and the right outer wall of the cold control box 19, respectively, a blocking shaft 25 is rotatably provided between the two blocking blocks 24, and a blocking plate 26 is fixedly provided on the blocking shaft 25, so that the openings on the left and right sides of the cold control box 19 can be blocked, thereby reducing temperature changes.
  • the air cooling mechanism includes four identical support rods 12 fixed at the middle upper end of the base 11, a pulley 13 is rotatably provided between the front and rear support rods 12, an air cooling conveyor belt 14 is connected between the pulleys 13, and the speed of the air cooling conveyor belt 14 is adjustable.
  • an extension plate 15 is fixedly provided on the upper ends of the two support rods 12 on the left side
  • a cooling control shaft 16 is rotatably provided between the two extension plates 15
  • a cooling control pulley 17 is fixedly provided on the cooling control shaft 16
  • the same cooling control shaft 16 and cooling control pulley 17 are rotatably provided on the left side of the cooling control box 19
  • a cooling control conveyor belt 18 is connected between the two cooling control pulleys 17, the cooling control conveyor belt 18 passes through the left and right ends of the cooling control box 19, and the speed of the cooling control pulley 17 is adjustable.
  • the insulation mechanism includes an insulation box 27 fixed to the upper right end of the base 11.
  • the insulation box 27 is a hollow structure and also has a square opening.
  • the conveyor belt passes through the left and right ends, and a baffle 26 is provided at the opening to reduce temperature changes.
  • the temperature of the forged piston is first detected.
  • the product temperature ⁇ 930°C is a qualified product.
  • the qualified product is placed in the controlled cooling box 19, and the controlled cooling shaft 16 is started to rotate the controlled cooling pulley 17, so that the piston on the controlled cooling pulley 17 moves.
  • the control panel 22 is controlled to start the hair dryer 20 to blow air to it, thereby lowering the temperature.
  • the infrared detector 21 can monitor the temperature of the piston to make it reach the specified temperature.
  • the piston contacts the baffle plate 26, so that the baffle plate 26 can rotate, and then it can pass through the controlled cooling box 19.
  • the piston falls onto the air-cooling conveyor belt 14, so that it is naturally cooled down to reach the specified temperature, so that it can enter the controlled cooling pulley 17, keep it warm, extend the time of the piston at the specified temperature, make the organization of the piston as much as possible, and ensure the metallographic organization of the final piston.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
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Abstract

一种非调质钢活塞的控冷工艺及其设备，对锻造成型的活塞进行温度检测，其产品温度≥930℃时为合格产品，使合格的产品放置在控冷机构上，通过调节风机的风量和输送带的速度，控制活塞锻件的控冷出口温度为700±20℃,并控制空冷段出口温度为650±20℃,保温冷却温度为600±10℃。控冷设备包括底座(11)，底座(11)上固定设有控冷机构、空冷机构和保温机构，空冷机构连接控冷机构与保温机构。通过控冷使锻造后的活塞快速冷却到需要的温度，到达要求的硬度和性能要求，通过保温段延长活塞在指定温度的时间，使活塞的组织尽量转化。

Description

一种非调钢活塞的控冷工艺及其设备 技术领域
本发明涉及活塞相关领域，具体为一种非调钢活塞的控冷工艺及其设备。
背景技术
活塞是汽车发动机汽缸体中作往复运动的机件。活塞的基本结构可分为顶部、头部和裙部。活塞顶部是组成燃烧室的主要部分，其形状与所选用的燃烧室形式有关。汽油机多采用平顶活塞，其优点是吸热面积小，在活塞进行制备的过程中，需要对各个阶段进行温度的控制，从而保证活塞的质量。
发明内容
本发明的目的在于提供一种非调钢活塞的控冷工艺及其设备，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：一种非调钢活塞的控冷工艺,包括以下步骤：
步骤一：对锻造成型的活塞进行温度检测，其产品温度≥930℃时为合格产品；
步骤二：使合格的产品放置在控冷机构上，通过调节风机的风量和输送带的速度，控制活塞锻件的控冷出口温度700±20℃左右；
步骤三：使步骤二中的活塞锻件放置在空冷机构内，使锻件缓慢冷却，通过调节输送带速度控制活塞锻件的空冷段出口温度650±20℃；
步骤四：使步骤三中的活塞锻件放置在保温机构内，通过加热炉使活塞锻件的温度保持在600±10℃保温冷却；
步骤五：使活塞锻件离开保温机构，其出口温度低于600℃。
作为优选，步骤二三四中控冷机构、空冷机构以及保温机构的加工时间分别为180-300S、120-240S以及300-600S。
一种非调钢活塞的控冷工艺的设备，包括底座，所述底座为“凹”字型，左右两侧高度大于其中间高度，所述底座左侧上端固定设有控冷机构，所述底座右侧上端固定设有保温机构，所述底座中间上端固定设有空冷机构，所述空冷机构连接所述控冷机构与所述保温机构，从而使活塞能够先在所述控 冷机构内进行处理，从而通过控冷使活塞到达要求的硬度和要求的性能，在通过空冷机构进行自然冷却，使产品缓慢降温到指定温度，进而使其进入到所述保温机构内，延长活塞在指定温度的时间，使活塞的组织尽量转化，保证最后的活塞的金相组织。
作为优选，所述控冷机构包括固定在所述底座左侧上端的控冷箱，所述控冷箱为空心结构，所述控冷箱左右两侧带有方形开口，从而连通所述控冷箱左右两端，所述控冷箱内上端固定设有两个相同的吹风机，所述吹风机风量可调，所述控冷箱右侧上端固定设有红外检测器，所述控冷箱上端外部上端固定设有控制板，所述控制板与所述红外检测器之间通过电线连接，从而能够监控产品的低温或超温。
作为优选，所述控冷箱左侧内壁与所述控冷箱右侧外壁上分别固定设有两个相同的遮挡块，两个所述遮挡块之间转动设有遮挡轴，所述遮挡轴上固定设有遮挡板，从而能够对所述控冷箱左右两侧的开口进行遮挡，进而能够减小温度变化。
作为优选，所述空冷机构包括固定在所述底座中间上端的四个相同的支撑杆，前后两个所述支撑杆之间转动设有带轮，所述带轮之间连接设有空冷传送带，所述空冷传送带速度可调。
作为优选，左侧两个所述支撑杆上端固定设有延长板，两个所述延长板之间转动设有控冷轴，所述控冷轴上固定设有控冷带轮，所述控冷箱左侧外部转动设有同样的控冷轴和控冷带轮，两个所述控冷带轮之间连接设有控冷传送带，所述控冷传送带穿过所述控冷箱左右两端，且所述控冷带轮速度可调。
作为优选，所述保温机构包括固定在所述底座右侧上端的保温箱，所述保温箱为空心结构，且同样带有方形开口，传送带穿过左右两端，且在开口处带有遮挡板，减小温度的变化。
综上所述，本发明有益效果是：
1、本发明通过先对活塞进行温度的检测，使合格的活塞通过控冷段与空冷段，从而能够对经过的活塞进行温度的控制，同时内部风机的风量，以及 传送速度均可调整，从而使锻造后的活塞快速冷却到需要的温度，通过控冷使活塞到达要求的硬度盒性能要求。
2、本发明通过保温段延长活塞在指定温度的时间，使活塞的组织尽量转化，保证最后的活塞的金相组织。
附图说明
为了更清楚地说明发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一种非调钢活塞的控冷工艺的设备整体三维结构示意图；
图2为本发明图1中A-A处剖视图结构示意图；
图3为本发明图1中B-B处剖视图结构示意图。
附图中标记分述如下：11、底座；12、支撑杆；13、带轮；14、空冷传送带；15、延长板；16、控冷轴；17、控冷带轮；18、控冷传送带；19、控冷箱；20、吹风机；21、红外检测器；22、控制板；24、遮挡块；25、遮挡轴；26、遮挡板；27、保温箱。
具体实施方式
本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。
本说明书(包括任何附加权利要求、摘要和附图)中公开的任一特征，除非特别叙述，均可被其他等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而已。
下面结合图1-5对本发明进行详细说明，其中，为叙述方便，现对下文所说的方位规定如下：下文所说的上下左右前后方向与图1视图方向的前后左右上下的方向一致，图1为本发明装置的正视图，图1所示方向与本发明装置正视方向的前后左右上下方向一致。
请参阅图1-5，本发明提供的一种实施例：一种非调钢活塞的控冷工艺及其设备,包括以下步骤：
步骤一：对锻造成型的活塞进行温度检测，其产品温度≥930℃时为合格产品；
步骤二：使合格的产品放置在控冷机构上，通过调节风机的风量和输送带的速度，控制活塞锻件的控冷出口温度700±20℃左右；
步骤三：使步骤二中的活塞锻件放置在空冷机构内，使锻件缓慢冷却，通过调节输送带速度控制活塞锻件的空冷段出口温度650±20℃；
步骤四：使步骤三中的活塞锻件放置在保温机构内，通过加热炉使活塞锻件的温度保持在600±10℃保温冷却；
步骤五：使活塞锻件离开保温机构，其出口温度低于600℃。
另外，在一个实施例中，步骤二三四中控冷机构、空冷机构以及保温机构的加工时间分别为180-300S、120-240S以及300-600S。
一种非调钢活塞的控冷工艺及其设备，包括底座11，所述底座11为“凹”字型，左右两侧高度大于其中间高度，所述底座11左侧上端固定设有控冷机构，所述底座11右侧上端固定设有保温机构，所述底座11中间上端固定设有空冷机构，所述空冷机构连接所述控冷机构与所述保温机构，从而使活塞能够先在所述控冷机构内进行处理，从而通过控冷使活塞到达要求的硬度和要求的性能，在通过空冷机构进行自然冷却，使产品缓慢降温到指定温度，进而使其进入到所述保温机构内，延长活塞在指定温度的时间，使活塞的组织尽量转化，保证最后的活塞的金相组织。
另外，在一种实施例中，所述控冷机构包括固定在所述底座11左侧上端的控冷箱19，所述控冷箱19为空心结构，所述控冷箱19左右两侧带有方形开口，从而连通所述控冷箱19左右两端，所述控冷箱19内上端固定设有两个相同的吹风机20，所述吹风机20风量可调，所述控冷箱19右侧上端固定设有红外检测器21，所述控冷箱19上端外部上端固定设有控制板22，所述控制板22与所述红外检测器21之间通过电线连接，从而能够监控产品的低温或超温。
另外，在一种实施例中，所述控冷箱19左侧内壁与所述控冷箱19右侧外壁上分别固定设有两个相同的遮挡块24，两个所述遮挡块24之间转动设有 遮挡轴25，所述遮挡轴25上固定设有遮挡板26，从而能够对所述控冷箱19左右两侧的开口进行遮挡，进而能够减小温度变化。
另外，在一种实施例中，所述空冷机构包括固定在所述底座11中间上端的四个相同的支撑杆12，前后两个所述支撑杆12之间转动设有带轮13，所述带轮13之间连接设有空冷传送带14，所述空冷传送带14速度可调。
另外，在一种实施例中，左侧两个所述支撑杆12上端固定设有延长板15，两个所述延长板15之间转动设有控冷轴16，所述控冷轴16上固定设有控冷带轮17，所述控冷箱19左侧外部转动设有同样的控冷轴16和控冷带轮17，两个所述控冷带轮17之间连接设有控冷传送带18，所述控冷传送带18穿过所述控冷箱19左右两端，且所述控冷带轮17速度可调。
另外，在一种实施例中，所述保温机构包括固定在所述底座11右侧上端的保温箱27，所述保温箱27为空心结构，且同样带有方形开口，传送带穿过左右两端，且在开口处带有遮挡板26，减小温度的变化。
具体实施时
当对活塞进行控冷时，先对锻造成型的活塞进行温度检测，其产品温度≥930℃时为合格产品，对合格的产品放置在控冷箱19内，控冷轴16启动，从而使控冷带轮17转动，从而使控冷带轮17上的活塞移动，此时控制所述控制板22，,从而使吹风机20启动，从而对其进行吹风，从而降低温度，同时红外检测器21能够对活塞进行温度监测，从而使其达到规定的温度，同时活塞接触遮挡板26，从而使遮挡板26能够转动，进而使其能够穿过控冷箱19，此时活塞掉落到空冷传送带14上，从而对其进行自然降温，从而使其达到指定的温度，使其能够进入到控冷带轮17内，对其进行保温，延长活塞在指定温度的时间，使活塞的组织尽量转化，保证最后的活塞的金相组织。
以上所述，仅为发明的具体实施方式，但发明的保护范围并不局限于此，任何不经过创造性劳动想到的变化或替换，都应涵盖在发明的保护范围之内。因此，发明的保护范围应该以权利要求书所限定的保护范围为准。

Claims (8)

  1. 一种非调钢活塞的控冷工艺，其特征在于：包括以下步骤：
    步骤一：对锻造成型的活塞进行温度检测，其产品温度≥930℃时为合格产品；
    步骤二：使合格的产品放置在控冷机构上，通过调节风机的风量和输送带的速度，控制活塞锻件的控冷出口温度700±20℃左右；
    步骤三：使步骤二中的活塞锻件放置在空冷机构内，使锻件缓慢冷却，通过调节输送带速度控制活塞锻件的空冷段出口温度650±20℃；
    步骤四：使步骤三中的活塞锻件放置在保温机构内，通过加热炉使活塞锻件的温度保持在600±10℃保温冷却；
    步骤五：使活塞锻件离开保温机构，其出口温度低于600℃。
  2. 根据权利要求1所述的一种非调钢活塞的控冷工艺，其特征在于：步骤二中控冷机构加工时间为180-300S，步骤三中空冷机构加工时间为120-240S、步骤四中保温机构加工时间为300-600S。
  3. 根据权利要求1-2任意一项所述的一种非调钢活塞的控冷工艺的设备，其特征在于：包括底座(11)，所述底座(11)为“凹”字型，左右两侧高度大于其中间高度，所述底座(11)左侧上端固定设有控冷机构，所述底座(11)右侧上端固定设有保温机构，所述底座(11)中间上端固定设有空冷机构，所述空冷机构连接所述控冷机构与所述保温机构。
  4. 根据权利要求3所述的一种非调钢活塞的控冷工艺的设备，其特征在于：所述控冷机构包括固定在所述底座(11)左侧上端的控冷箱(19)，所述控冷箱(19)为空心结构，所述控冷箱(19)左右两侧带有方形开口，所述控冷箱(19)内上端固定设有两个相同的吹风机(20)，所述吹风机(20)风量可调，所述控冷箱(19)右侧上端固定设有红外检测器(21)，所述控冷箱(19)上端外部上端固定设有控制板(22)，所述控制板(22)与所述红外检测器(21)之间通过电线连接。
  5. 根据权利要求4所述的一种非调钢活塞的控冷工艺的设备，其特征在 于：所述控冷箱(19)左侧内壁与所述控冷箱(19)右侧外壁上分别固定设有两个相同的遮挡块(24)，两个所述遮挡块(24)之间转动设有遮挡轴(25)，所述遮挡轴(25)上固定设有遮挡板(26)。
  6. 根据权利要求3所述的一种非调钢活塞的控冷工艺的设备，其特征在于：所述空冷机构包括固定在所述底座(11)中间上端的四个相同的支撑杆(12)，前后两个所述支撑杆(12)之间转动设有带轮(13)，所述带轮(13)之间连接设有空冷传送带(14)，所述空冷传送带(14)速度可调。
  7. 根据权利要求6所述的一种非调钢活塞的控冷工艺的设备，其特征在于：左侧两个所述支撑杆(12)上端固定设有延长板(15)，两个所述延长板(15)之间转动设有控冷轴(16)，所述控冷轴(16)上固定设有控冷带轮(17)，所述控冷箱(19)左侧外部转动设有同样的控冷轴(16)和控冷带轮(17)，两个所述控冷带轮(17)之间连接设有控冷传送带(18)，所述控冷传送带(18)穿过所述控冷箱(19)左右两端，且所述控冷带轮(17)速度可调。
  8. 根据权利要求3所述的一种非调钢活塞的控冷工艺的设备，其特征在于：所述保温机构包括固定在所述底座(11)右侧上端的保温箱(27)，所述保温箱(27)为空心结构，且同样带有方形开口，传送带穿过左右两端，且在开口处带有遮挡板(26)。
PCT/CN2022/129142 2022-10-12 2022-11-02 一种非调钢活塞的控冷工艺及其设备 WO2024077679A1 (zh)

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