热轧是相对于冷轧而言的，冷轧是在再结晶温度以下进行的轧制，而热轧就是在再结晶温度以上进行的轧制。工艺流程：原料(冷轧钢卷)→开卷→剪切头尾→焊接→碱液喷洗→碱液涮洗→电解脱脂→水涮洗→一级水洗→二级水洗→热风干燥→入口活套→还原退火→热浸镀锌→锌层控制→冷却→光整→拉伸弯曲矫直→钝化→烘干→出口活套→静电涂油→出口剪切→卷取→卸卷→钢卷称重→包装→入库。
Hot rolling is relative to cold rolling, cold rolling is below the recrystallization temperature of rolling, and hot rolling is above the recrystallization temperature of rolling. Process flow: raw material (cold rolled steel coil) uncoiling shear end welding 8594 alkaline spray washing alkaline washing electrodegreasing 8594; water washing first water washing 8594; second water washing hot air dry 8594 inleloop 85Reducannealing 8594 hot dip galvanizing 85zinzinc layer control 8594 cooling 8594 \8594 8594 8594 electrodegreasing 8594 \\\\\\\\\\\Drying to Export It is composed of electrostatic oiling, export cutting, coiling, unloading, volume weighing, packaging and warehousing.
你好，钢管的热镀锌采用齿盘全浸式半自动镀锌方式拨入、压下、螺旋、拔出、提升的机械原理，完成热镀锌过程。
Hello, the hot-dip galvanizing of steel pipes adopts the mechanical principle of dialing in, pressing down, screw, pulling out and lifting by the full-dip semi-automatic galvanizing method of tooth disc to complete the hot-dip galvanizing process.
1、工艺参数控制：锌液温度应控制在440-460℃之间；浸锌时间应控制在30-60秒之间；加铝量(锌液面含铝量0.01-0.02%)
1. Process parameter control: zinc liquid temperature should be controlled between 440-460%, zinc dipping time should be controlled between 30-60 seconds, aluminum content (zinc liquid surface aluminum content 0.01-0.02%).
2、锌锭使用应为国标Zn0-3锌锭。
2, the use of zinc ingots should be the national standard Zn0-3 zinc ingots.
3、要经常维护控制好拔入压下螺旋、拔出提升装置的可靠性能，加强气缸的润滑，调整好镀锌管分配器的高度、角度，将设备调整到最佳状态。
3. Maintain and control the reliability of pull-in screw and pull-out lifting device, strengthen the lubrication of cylinder, adjust the height and angle of galvanized pipe distributor, and adjust the equipment to the best state.
4、接近开关的摆放位置要准确无误；热电偶线和表要统一型号使用，否则，温度误差大，热电偶的保护套管，要经常检查更换。
4. The position of the proximity switch should be accurate; the thermocouple wires and watches should be used in a unified model; otherwise, the temperature error is large, and the protective sleeve of the thermocouple should be checked and replaced frequently.
5、操作台操作人员要根据炉前设备运行情况及手势指挥，手动调整速度防止卡管现象。
5. Operators of the operating table should adjust the speed manually to prevent pipe jamming according to the operation of the equipment before the furnace and the gesture command.
6、炉前工使用工具要先预热再使用，以防止溅锌伤人；经常检查有无钢管掉入锅内，如有要及时清出；要及时调整设备别卡管，以保障设备的安全。
6. The tools used in front of the furnace should be preheated before being used to prevent people from being injured by zinc splashing; the steel pipes should be cleared if they fall into the pot; and the equipment should be adjusted in time to ensure the safety of the equipment.
热轧无缝钢管工艺流程是什么？推荐回答：①热轧无缝钢管主要生产工序(△主要检验工序)：
What is the technological process of hot rolled seamless steel pipe? Recommended answer: (1) main production process of hot rolled seamless steel pipe (main inspection procedure):
管坯准备及检查△→管坯加热→穿孔→轧管→冷拔钢管再加热→定(减)径→热处理△→成品管矫直→精整→检验△(无损、理化、台检)→入库
Preparing and checking of tube blank heating of tube blank piercing rolling reheating of tube sizing heat treatment straightening finishing checking storage
②冷轧(拔)无缝钢管主要生产工序：
(II) main production processes of cold rolled (drawn) seamless steel tubes:
坯料准备→酸洗润滑→冷轧(拔)→热处理→矫直→精整→检验
Billet preparation, pickling, lubrication, cold rolling (drawing), heat treatment, straightening, finishing, and testing.
热轧(挤压冷拔无缝钢管)：圆管坯→加热→穿孔→三辊斜轧、连轧或挤压→脱管→定径(或减径)→冷却→矫直→水压试验(或探伤)→标记→入库轧制冷拔无缝钢管的原料是圆管坯，圆管胚要经过切割机的切割加工成长度约为１米的坯料，并经传送带送到熔炉内加热。
Hot-rolled (extruded seamless steel pipe): tube blank heating perforation three-roll cross-rolling, continuous rolling or extrusion stripping sizing (or reducing diameter) cooling straightening hydrostatic test (or flaw detection) labeling storage of seamless tube raw material is round tube blank, tube embryo to be cut through the cutting machine processing growth of about 1 meter, and The conveyor belt is sent to the furnace for heating.
钢坯被送入熔炉内加热，温度大约为１２００摄氏度。
The billet is heated into a furnace and the temperature is about 1200 degrees Celsius.
燃料为氢气或乙炔。
The fuel is hydrogen or acetylene.
炉内温度控制是关键性的问题.圆管坯出炉后要经过压力穿孔机进行穿空。
The temperature control in the furnace is a key problem. The round tube billets need to pass through the pressure perforator after they are put out.
一般较常见的穿孔机是锥形辊穿孔机，这种穿孔机生产效率高，产品质量好，穿孔扩径量大，可穿多种钢种。
The common piercer is conical roller piercer. This kind of piercer has high production efficiency, good product quality, large piercing enlargement and can pierce many kinds of steel.
穿孔后，圆管坯就先后被三辊斜轧、连轧或挤压。
After piercing, the round billet is successively rolled, rolled or extruded by three rolls.
挤压后要脱管定径。
After extrusion, the diameter must be removed.
定径机通过锥形钻头高速旋转入钢胚打孔，形成钢管。
The sizing machine punched through the tapered bit into the steel embryo to form a steel pipe.
钢管内径由定径机钻头的外径长度来确定。
The inner diameter of the steel pipe is determined by the length of the diameter of the drill bit.
钢管经定径后，进入冷却塔中，通过喷水冷却，钢管经冷却后，就要被矫直。
After sizing, the steel pipe enters the cooling tower and is cooled by spraying water. After cooling, the steel pipe will be straightened.
钢管经矫直后由传送带送至金属探伤机(或水压实验)进行内部探伤。
After being straightened, the steel pipe is sent to the metal flaw detector (or water pressure test) through the conveyor belt for internal detection.
若钢管内部有裂纹，气泡等问题，将被探测出。
If there are cracks inside the steel pipe, bubbles and other problems will be detected.
钢管质检后还要通过严格的手工挑选。
After the quality inspection, the steel pipe should be selected by strict manual selection.
钢管质检后，用油漆喷上编号、规格、生产批号等。
After the quality inspection of the steel pipe, paint numbers, specifications, production batch numbers and so on.
并由吊车吊入仓库中。
The crane is hoisted into the warehouse.
热缩套管工艺流程是怎样的？推荐回答：生产时把热缩管加热到高弹态，施加载荷使其扩张，在保持扩张的情况下快速冷却，使其进入玻璃态，这种状态就固定住了。
What is the technological process of the heat shrinkable sleeve? Recommended Answer: In production, the heat pipe is heated to a high elastic state, the load is applied to make it expand, while maintaining the expansion of the rapid cooling, so that it enters the glass state, this state is fixed.
在使用时一加热，它就会变回高弹态，但这时载荷没有了，它就要回缩。
When heated, it will return to high elastic state, but when the load is gone, it will shrink back.
简单来说就是造粒-挤出-辐射交联-扩张-包装-完毕
In short, granulating - extrusion - radiation crosslinking - expansion - Packaging - finish.
热缩母排套管和热缩管一样的，是以热塑性聚烯烃为基材，添加不含毒性物质的阻燃剂和助剂合成为复合高分子材料，挤出成管状、经γ射线辐照或高能电子束轰击后，线型分子部分链段产生交联，成为具有“形状记忆”的“热固性”材料，加热并将直径扩张直原来的数倍后冷却定型。
The thermoplastic polyolefin (TPO) is used as the base material, and flame retardants and additives without toxic substances are added to form a composite polymer material. After extrusion, some segments of the linear molecule are crosslinked to form a "shape memory" after being irradiated by gamma rays or bombarded by high energy electron beams. "Solid" material, heating and expanding the diameter several times after the original cooling stereotypes.
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