輸送帶廠家多次表示輸送帶的混合穿孔過程對輸送帶的影響，并通過百度正式發(fā)布了輸送帶的要點:
The conveyor belt manufacturer has repeatedly expressed the impact of the mixed perforation process of the conveyor belt on the conveyor belt, and officially released the key points of the conveyor belt through Baidu:
(1)爆破鉆孔:輸送帶材料在連續(xù)激光照射下，在中間形成一個坑，再與激光束同軸氧流，迅速將熔融材料去除，形成一個孔?？椎拇笮∨c板的厚度,平均直徑的爆破穿孔金屬板厚度的一半,所以厚板爆破穿孔的孔直徑較大,而不是圓的,不應該被用于要求較高的零件(如石油篩縫管),只能使用上的浪費。此外，由于在射孔中使用的氧氣壓力與切割時相同，所以飛濺更大。
(1) blasting drilling: under the continuous laser irradiation, the conveyor belt material forms a pit in the middle, and then flows with the coaxial oxygen of the laser beam to quickly remove the molten material and form a hole. The hole size and the thickness of the plate, half of the thickness of the metal plate with the average diameter of the blasting perforation, so the hole diameter of the thick plate blasting perforation is larger, rather than round, should not be used for the parts with higher requirements (such as the petroleum screen seam pipe), and can only be used for waste. In addition, since the oxygen pressure used in perforating is the same as that used in cutting, the spatter is larger.
(2)脈沖鉆削:利用脈沖激光峰值功率熔化或蒸發(fā)少量材料?？諝饣虻獨獬Ｗ鳛檩o助氣體使用，以減少放熱氧化引起的孔洞膨脹。切割時氣體壓力低于氧氣壓力。激光的每一個脈沖只產(chǎn)生一個小的粒子噴霧，這些粒子逐漸滲透，所以穿孔板需要幾秒鐘的時間。
(2) pulse drilling: use the peak power of pulse laser to melt or evaporate a small amount of materials. Air or nitrogen is often used as auxiliary gas to reduce the hole expansion caused by exothermic oxidation. Gas pressure is lower than oxygen pressure during cutting. Each pulse of the laser produces only a small particle spray, which gradually penetrates, so the perforation plate takes several seconds.
一旦輸送帶穿孔，輔助氣體被氧氣代替進行切割。射孔質(zhì)量優(yōu)于爆破射孔。用于此目的的激光器不僅要有更高的輸出功率;更重要的是光束的時間和空間特性，所以一般的橫流CO2激光器不能滿足激光切割的要求。此外，脈沖射孔需要更可靠的氣路控制系統(tǒng)，實現(xiàn)對氣體類型、氣體壓力和射孔時間的控制。
Once the conveyor belt is perforated, the auxiliary gas is cut by oxygen instead. Perforating quality is better than blasting perforating. The laser used for this purpose should not only have higher output power, but also the time and space characteristics of the beam, so the general cross flow CO2 laser can not meet the requirements of laser cutting. In addition, a more reliable gas path control system is needed to realize the control of gas type, gas pressure and perforation time.
The above is issued by large angle conveyor belt manufacturer. Please contact us if necessary! We are a conveyor belt factory: http://www.ujkdbkh.cn, we provide you with perfect service and good work!
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