Now in the market, we can easily buy the steel mesh we need, because there are many sellers of this product, but do you firmly believe that what we can buy is high quality? Is the price you bought the lowest?

　　市場(chǎng)雖然賣鋼筋網(wǎng)的商家是很多的，可是他們產(chǎn)品質(zhì)量并不一定都是合格的，有的商家為了多掙點(diǎn)錢就會(huì)出售質(zhì)量不合格的產(chǎn)品，所以咱們?cè)谫?gòu)買的時(shí)分應(yīng)該十分的小心，要在很多的賣家傍邊找到的鋼筋網(wǎng)購(gòu)買。當(dāng)然在挑選商家的時(shí)分還要注意，并不能為了而花冤枉錢吧。所以咱們要選就選性價(jià)比高的鋼筋網(wǎng)。

　　Although there are many retailers selling steel mesh in the market, the quality of their products is not necessarily qualified. Some retailers will sell products of unqualified quality in order to earn more money. So we should be very careful when we buy them. We should find the best quality steel mesh beside a lot of sellers to buy. Of course, we should pay attention to the price when choosing the merchants. We can't waste money for the sake of high quality. So let's choose the steel mesh with high cost performance.

　　正是工業(yè)開(kāi)展愈加有勁頭，鋼筋網(wǎng)也是越來(lái)越好了。因?yàn)椴粌H僅要在性能方面做到優(yōu)勢(shì)，也要從質(zhì)量方面來(lái)把關(guān)。對(duì)于贏得大家信賴的好產(chǎn)品，這樣才會(huì)讓生產(chǎn)技藝方面有了更大的立異與進(jìn)步。這也會(huì)讓鋼筋網(wǎng)越來(lái)越占有市場(chǎng)前景。

　　It is industry that is developing more vigorously, and steel mesh is getting better and better. Because we should not only achieve superiority in performance, but also check the quality. To win everyone's trust in good products, so that the production technology has greater innovation and progress. This will also make the reinforcing steel mesh more and more market prospects.

　　并且，從鋼筋網(wǎng)來(lái)看，選用著好的材料，這對(duì)于質(zhì)量才是硬道理。耐用性以及其它的性能也均提高起來(lái)了。與此一起，產(chǎn)品性能方面也會(huì)得到一方面的改進(jìn)，從運(yùn)用生產(chǎn)力來(lái)說(shuō)，率的產(chǎn)品也是為群眾所喜歡。

　　Moreover, from the point of view of reinforcing steel mesh, the best material is chosen, which is the absolute principle for quality. Durability and other properties have also been improved. Together with this, product performance will also be improved on one hand. In terms of productivity, efficient products are liked by the masses.

　　鋼筋銜接套筒略微擰松一點(diǎn)也不行嗎？當(dāng)然不行了。它會(huì)影響整個(gè)工程。咱們做事就要做好。能避免的事故盡量避免它發(fā)生。

　　Is it not possible to loosen the reinforcing bar connection sleeve slightly? Of course not. It will affect the whole project. Let's do the best we can. Avoidable accidents should be avoided as far as possible.

　　針對(duì)如何處理鋼筋套筒銜接松動(dòng)問(wèn)題，咱們有四種處理辦法。

　　In view of how to deal with the problem of loosening connection of reinforcing steel sleeve, we have four ways to deal with it.

　　1、摩擦防松。這是運(yùn)用廣的一種防松辦法，這種辦法在螺紋副之間發(fā)生一不隨外力變化的正壓力，以發(fā)生一能夠阻止螺紋副相對(duì)滾動(dòng)的摩擦力。這種正壓力可通過(guò)軸向或一起兩向壓緊螺紋副來(lái)實(shí)現(xiàn)。如選用彈性墊圈、鋼筋銜接套筒、自鎖螺母和尼龍嵌件鎖緊螺母等。這種防松辦法對(duì)于螺母的拆開(kāi)比較便利，但在沖擊、振蕩和變載荷的狀況，開(kāi)端螺栓會(huì)因松懈導(dǎo)致預(yù)緊力下降，跟著振蕩次數(shù)的添加，丟失的預(yù)緊力緩慢地增多，終將會(huì)導(dǎo)致螺母松脫、螺紋聯(lián)接失效。

　　1, friction prevention. This is the most widely used anti-loosening method. This method produces a positive pressure between the threaded pairs that does not change with the external force to produce a friction that can prevent the relative rolling of the threaded pairs. This positive pressure can be achieved by axial or two-way compression of threaded pairs together. For example, elastic washer, reinforcing bar connection sleeve, self-locking nut and nylon insert locking nut are selected. This method is convenient for nut disassembly, but in the case of impact, oscillation and variable load, the preload of the start bolt will decrease due to loosening. With the increase of the number of oscillations, the lost preload will increase slowly, and eventually lead to nut loosening and thread connection failure.

　　2、機(jī)械防松。是用止動(dòng)件直接約束螺紋副的相對(duì)滾動(dòng)。如選用開(kāi)口銷、串連鋼絲和止動(dòng)墊圈等。因?yàn)橹箘?dòng)件沒(méi)有預(yù)緊力，螺母松退到止動(dòng)方位時(shí)防松止動(dòng)件才干起作用，因此，這種辦法實(shí)際上不防松而是避免脫落。

　　2, mechanical loosening. The relative rolling of the thread pair is constrained directly by the stop. For example, open pin, series steel wire and stop washer are selected. Because the stop has no preload, the anti-loosening stop can work when the nut is loosened to the stop position. Therefore, this method actually does not prevent loosening but avoids falling off.

　　3、鉚沖防松。在擰緊后選用沖點(diǎn)、焊接、粘接等辦法，使螺紋副失去運(yùn)動(dòng)副特性而銜接成為不行拆銜接。這種辦法的缺點(diǎn)是栓桿只能運(yùn)用一次，且拆開(kāi)十分困難，必須破壞螺栓副方可拆開(kāi)。

　　3, riveting and anti loosening. After tightening, punching point, welding, bonding and other methods are selected to make the thread pair lose the characteristics of the motion pair and join into a non-disassembly connection. The disadvantage of this method is that the bolt can only be used once, and it is very difficult to disassemble. The bolt pair must be destroyed before it can be disassembled.

　　4、結(jié)構(gòu)防松。是使用螺紋副自身結(jié)構(gòu)，即唐氏螺紋防松辦法。

　　4, the structure is loose proof. It is to use the thread pair's own structure, that is, the Down's thread loosening prevention method.