Our country builds the reinforcing steel bar that uses on the market to join the method has at present: Colligation of reinforcing steel bar is built receive, mechanical cold extruding joins, electric welding of resistor of reinforcing steel bar, glitter of reinforcing steel bar is right solder, arc welding of reinforcing steel bar, solder of pressure of broken bits of report of reinforcing steel bar, atmospheric pressure of reinforcing steel bar is right solder, bury a reinforcing steel bar to bury arc pressure solder beforehand, whorl bushing join. Now stage is the mainest use method has: Build receive a standard, flashy solder, electroslag welding, baric solder, and the method of join of a few kinds of reinforcing steel bar such as threaded coupling.
In the light of above a few kinds of commonly used reinforcing steel bar join for the method, build receive a law to belong to concentration not with discuss; Lowest of flashy seam rules and forms of classical poetic composition, about 1/3 unqualified; Electroslag welding second low, especially electroslag welding is transverse after soldering, percent of pass is too low cannot do check to check check, so electroslag welding can stand with what make reinforcing steel bar only to solder, cannot use at other direction to solder. Percent of pass is highest is baric solder, can achieve 100 percent percent of pass completely; A few kinds solder in the method, cost of threaded coupling law is highest, be baric solder cost about 20 multiple. If computation uses n, lowest of cost of baric solder law makes an appointment with 0.3 yuan / head left and right sides, if be not calculated,use n, glitter solders law cost lowest. If from equipment investment looks: Devoted cost is the smallest is threaded coupling, because cost of whorl bushing connect is very high,have manufacturer of some of whorl bushing equipment, place is covered with hiring user reinforcing steel bar freely discount machine. It is baric solder next devoted cost is small. Because flash solder and electroslag welding need to deploy big electric welder, devoted cost is bigger ordinal it is flashy solder, electroslag welding.
From above for the application characteristics of a few kinds of equipment, flashy solder characteristic is to solder operate simple and easy control, cost of connect of reinforcing steel bar is inferior. Defect is can use as only of reinforcing steel bar transverse solder, equipment volume is larger, shift is disadvantageous, narrow empty occasional does not have crane cannot construction, contact percent of pass is low, power consumption is bigger; The characteristic of electroslag welding is to solder clamping apparatus is deft, mobile and convenient, solder the operation is apt, contact cost is inferior also. Defect is the vertical stroke that can be used at reinforcing steel bar only to solder, need deploys big electric welder, power consumption is big; The operation of threaded coupling law is simpler, facility construction environmental protection. Defect is contact cost too tall. The characteristic of baric solder is, can solder transverse, perpendicular to, the reinforcing steel bar of aleatoric direction, percent of pass of connect of reinforcing steel bar is taller, clamping apparatus is lesser and mobile convenient, contact cost is low, installation cost is small. The technical demand that the biggest drawback of baric solder is pair of jockey people is higher, quality solders to get worker technology level in the operation the impact is bigger.
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