As an indispensable safety warning product for buried oil and gas pipelines, the gas warning tape has not been replaced in the past few years because of its good product characteristics. The warning tape uses PE (polyethylene) particles as raw material, so it has good anti-corrosion performance, which can ensure that the buried oil and gas pipelines will not be decomposed for 30 to 50 years and continue to play a warning role. What are the key factors that determine the quality of the warning tape? Let's explain below:

先要講的是警示帶的原料PE（聚乙烯）顆粒的性能好，它無臭，，手感似蠟，具有優(yōu)良的耐低溫性能（低使用溫度可達(dá)-100~-70°C），在-60℃下仍可保持良好的力學(xué)性能，使用溫度在80~110℃。化學(xué)穩(wěn)定性好，能耐大多數(shù)酸堿的侵蝕（不耐具有氧化性質(zhì)的酸）。常溫下不溶于一般溶劑，吸水性小，電絕緣性優(yōu)良，經(jīng)測(cè)試埋入地下30年不會(huì)腐爛。

First of all, PE (polyethylene) particles, the raw material of the warning tape, have good performance. It is odorless, non-toxic, and feels like wax. It has excellent low temperature resistance (low service temperature can reach - 100~- 70 ° C). It can still maintain good mechanical properties at - 60 ℃, and the service temperature is 80~110 ℃. Good chemical stability, resistant to most acids and alkalis (not resistant to oxidizing acids). It is insoluble in general solvents at normal temperature, has low water absorption, excellent electrical insulation, and will not decay after being buried underground for 30 years.

再者就是工藝，我廠的吹膜設(shè)備均為三層共擠新設(shè)備，能保障警示帶半成品的橫向和縱向的抗撕裂強(qiáng)度，同時(shí)可根據(jù)技術(shù)文件有效的控制產(chǎn)品的厚度和寬度，不會(huì)因?yàn)槌瑯?biāo)而造成成本提高。

Moreover, the process. Our film blowing equipment is a three-layer co-extrusion new equipment, which can guarantee the transverse and longitudinal tear resistance of the warning tape semi-finished products, and can effectively control the thickness and width of the product according to the technical documents, without causing cost increase due to exceeding the standard.

再然后就是印刷工藝，再都的警示帶如果警示語印刷工藝把握不好，隨管道埋入地下3-5年便褪色了，那就起不到警示作用了。

Then there is the printing process. If the printing process of the warning tape in Zaidi is not well grasped, it will fade after being buried in the ground for 3-5 years along with the pipeline, and it will not serve as a warning.