閥門球體的毛胚鍛造加工方法，是用于控制流體輸送管道中流體流動(dòng)狀態(tài)，因閥門球體結(jié)構(gòu)簡單，安裝維修方便，密封性能好，無內(nèi)泄漏，體積小等優(yōu)點(diǎn)，備受市場用戶的喜愛。
The rough embryo forging processing method of the valve ball is used to control the fluid flow state in the fluid transmission pipeline. Because the valve ball has the advantages of simple structure, convenient installation and maintenance, good sealing performance, no internal leakage and small volume, it is loved by market users.
1.按球體毛坯鍛打時(shí)的溫度分：
1. According to the forging temperature of sphere blank:
(1)熱鍛:將坯料加熱到一定溫度再進(jìn)行鍛造稱為熱鍛。
(1) Hot forging: heating the blank to a certain temperature before forging is called hot forging.
(2)冷鍛:將坯料在常溫下進(jìn)行鍛造稱為冷鍛。冷鍛所需的鍛壓設(shè)備噸位較大。冷鍛可以獲得較高精度和強(qiáng)度以及較光潔表面的鍛件。
(2) Cold forging: forging the blank at room temperature is called cold forging. The tonnage of forging equipment required for cold forging is large. Cold forging can obtain forgings with high precision, strength and smooth surface.
(3)溫鍛:坯料的加熱溫度小于熱鍛時(shí)的溫度。它所需設(shè)備噸位較冷鍛小，可鍛制強(qiáng)度較高和表面較粗糙的鍛件，是目前正在發(fā)展過程中的一種新工藝。
(3) Warm forging: the heating temperature of the blank is less than the temperature during hot forging. It requires less equipment tonnage than cold forging, and can forge forgings with higher strength and rough surface. It is a new process in the process of development.
2.按球體毛坯作用力分
2. Divided by sphere blank force
(1)手工鍛造加工：依靠手鍛工具盒人力的打擊，在鐵砧上將毛坯鍛打成預(yù)定形狀的鍛件。
(1) Manual forging processing: relying on the manual blow of the manual forging tool box, forging the blank into a forging with a predetermined shape on the anvil.
(2)機(jī)器鍛造：依靠鍛造工具在各種鍛造設(shè)備上將坯料制成鍛件。機(jī)鍛按所用的設(shè)備和工具不同，又可分為自由鍛造、模型鍛造、胎膜鍛造和特種鍛造四類：
(2) Machine forging: relying on forging tools to make blanks into forgings on various forging equipment. According to different equipment and tools used, machine forging can be divided into four categories: free forging, model forging, fetal membrane forging and special forging:
自由鍛造:它是將加熱到一定溫度的金屬坯料放在自由鍛造設(shè)備的上下砧之間進(jìn)行鍛造，由操作者控制金屬的變形而獲得預(yù)期形狀的鍛件。
Free forging: it is a forging in which the metal blank heated to a certain temperature is placed between the upper and lower anvil of the free forging equipment for forging, and the operator controls the deformation of the metal to obtain the expected shape.
模型鍛造：簡稱模鍛。它是將加熱到一定溫度的金屬坯料放到固定于模鍛設(shè)備上的模具型腔內(nèi)進(jìn)行鍛造并限制其變形，從而獲得與模具型腔一致的鍛件的生產(chǎn)方法。
Model forging: Die Forging for short. It is a production method that puts the metal blank heated to a certain temperature into the die cavity fixed on the die forging equipment for forging and limits its deformation, so as to obtain the forging consistent with the die cavity.
胎膜鍛造：簡稱胎膜鍛。它是介于自由鍛和模鍛之間的一種變形方式，把加熱到一定溫度的金屬坯料，用自由鍛的方法通過不固定于自由鍛設(shè)備上的胎膜來獲得成型的鍛件。
Fetal film forging: referred to as fetal film forging. It is a deformation mode between free forging and die forging. The metal blank heated to a certain temperature is obtained by free forging through the fetal membrane not fixed on the free forging equipment.
特種鍛造：它是在專用設(shè)備上或特殊模具內(nèi)使金屬坯料成形的一種鍛造工藝方法。如精密鍛造、輥鍛軋制、輾環(huán)軋制、螺旋斜軋、橫向軋制、擠壓成形等。
Special forging: it is a forging process method for forming metal blanks on special equipment or in special molds. Such as precision forging, roll forging rolling, ring rolling, helical cross rolling, transverse rolling, extrusion forming, etc.
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