钢丝螺套 HELICOIL
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The red coloured HELICOIL® plus SCREWLOCK thread insert, also stamped with the diamond formed embossing, should only be utilised with higher grade screws (starting from 8.8). High grade alloyed screws should be lubricated according to the recommendations of the manufacturer. The same torque should be applied as for the HELICOIL® plus free running.
The HELICOIL® plus free running is coloured green for better identification in its fitted condition and the colour does not come off. Every Böllhoff original HELICOIL® plus free running thread insert is unmistakably identified by means of a diamond shaped quality embossing at the end of the final coil.
2
HELICOIL® plus Thread Technology
The system The technology The versions The applications The advantages Application examples Materials / Thread forms Design guidelines Technical data of the thread inserts STRIPFEED® magazined thread inserts "pick and place" equipment Installation
page 20 21 22 23
24 – 27 26 / 27 28 – 31
32
33 – 37 38 – 40
41
42
43 44 45
HELICOIL® plus Thread Technology
The System
Thread inserts achieve a heavy-duty connection capability in low-strength metal materials and have been proven practice for over forty years. These thread inserts, made from a well-proven and tested quality stainless steel are formed from rhomboidally profiled wire into a resilient spiral. After installation the tang is broken off at the notch (pre-set breakoff point).
a HELICOIL® plus free running The thread insert with its precision-formed rhomboidal profile is coil for coil free running. The result is a true-to-gauge internal thread, double sided utilisable. The dimensional accuracy of the ISO thread conforms to DIN 13 6H, and 4H for special requirements.
The latest generation for this technology is called HELICOIL® plus.
Due to its optimal fitting structural shape, installation of HELICOIL® plus has been made far more simple. This is guaranteed by the installation area, which facilitates that the HELICOIL® plus can be utilised as a screw and screwed-in. The tool sleeve required until now with its leader cartridge is no longer necessary. Only a fitting mandrel is now required for screwing-in. But the acceptable available structural form tools can still be utilised.
τt = reduction in the torsion stress in the screw shank
The Technology
HELICOIL® plus thread inserts distinguish themselves through a high wearing tensile strength, low thread friction with tight tolerances, a high surface quality as well as corrosive and heat resistance.
3
HELICOIL® plus Thread Technology
The Versions
HELICOIL® plus thread inserts are available in two versions: HELICOIL® plus free running and HELICOIL® plus SCREWLOCK: Both variations distinguish themselves due to an optimal design. As with a screw the threaded inserts are simply screwed in by means of a fitting mandrel. The fitting time is reduced by up to 20% due to the fact that the program of utilisable tools has been so radically extended compared to previous methods of operations.
Rm = tensile strength minimum 1400 N/mm2 HV = Vickers hardness minimum 425 HV 0,2 RZ = roughness depth approximately 2,5 µm µG = reduced and constant thread friction, results in a heightened pre-stressing force FV
a HELICOIL® plus SCREWLOCK® HELICOIL® plus SCREWLOCK® offers the same thread technological advantages as HELICOIL® plus free running. In addition, a screw-locking section is worked in, which serves as a screw-locking device. The locking of the screw is achieved by means of one or several polygons formed coils, which grip the threads of the installed screw. In this way an elastically resilient friction lock is created. The locking moment achieved in this way is comparable with the specifications in DIN 267 Part 15, ISO 2320 or can be individually adapted to problem solutions. Standard values for the lock moments can be found in the table on page 7.
The latest generation of thread inserts
0100/06.02
Thread technology for high strength fastenings Simple – fast – long lasting
www.boellhoff.com
Contents
The material and nut thread strength pre-determined performance limits are increased through the Internationally tried and tested HELICOIL® plus thread technology.
page 3 3 4 5
5–7 8/9
10 11 11a – 17 18
19
wk.baidu.com
System components for installation HELICOIL® plus
Advisory service Standard range of HELICOIL® plus manual and machine taps HELICOIL® plus machine taps für special requirements Thread tolerances of the holding threads Manual taps Combined tap and cutting tools Machine taps Internal thread gauges for HELICOIL® plus threads Manual installation tools, electrical and battery installation tools and installation accessories Mechanical installation tools Accessoires for mechanical installation tools Semi- and completely automatic installation tools, tang break-off tool, unscrewing tools Examples of equipment and special machines for the semi-automatic installation of HELICOIL® plus HELICOIL® plus repair kits, range kits and HELICOIL® nuts Böllhoff and the HELICOIL® plus production Subject to technical modifications without notification. All dimensions in mm.
The HELICOIL® plus free running is coloured green for better identification in its fitted condition and the colour does not come off. Every Böllhoff original HELICOIL® plus free running thread insert is unmistakably identified by means of a diamond shaped quality embossing at the end of the final coil.
2
HELICOIL® plus Thread Technology
The system The technology The versions The applications The advantages Application examples Materials / Thread forms Design guidelines Technical data of the thread inserts STRIPFEED® magazined thread inserts "pick and place" equipment Installation
page 20 21 22 23
24 – 27 26 / 27 28 – 31
32
33 – 37 38 – 40
41
42
43 44 45
HELICOIL® plus Thread Technology
The System
Thread inserts achieve a heavy-duty connection capability in low-strength metal materials and have been proven practice for over forty years. These thread inserts, made from a well-proven and tested quality stainless steel are formed from rhomboidally profiled wire into a resilient spiral. After installation the tang is broken off at the notch (pre-set breakoff point).
a HELICOIL® plus free running The thread insert with its precision-formed rhomboidal profile is coil for coil free running. The result is a true-to-gauge internal thread, double sided utilisable. The dimensional accuracy of the ISO thread conforms to DIN 13 6H, and 4H for special requirements.
The latest generation for this technology is called HELICOIL® plus.
Due to its optimal fitting structural shape, installation of HELICOIL® plus has been made far more simple. This is guaranteed by the installation area, which facilitates that the HELICOIL® plus can be utilised as a screw and screwed-in. The tool sleeve required until now with its leader cartridge is no longer necessary. Only a fitting mandrel is now required for screwing-in. But the acceptable available structural form tools can still be utilised.
τt = reduction in the torsion stress in the screw shank
The Technology
HELICOIL® plus thread inserts distinguish themselves through a high wearing tensile strength, low thread friction with tight tolerances, a high surface quality as well as corrosive and heat resistance.
3
HELICOIL® plus Thread Technology
The Versions
HELICOIL® plus thread inserts are available in two versions: HELICOIL® plus free running and HELICOIL® plus SCREWLOCK: Both variations distinguish themselves due to an optimal design. As with a screw the threaded inserts are simply screwed in by means of a fitting mandrel. The fitting time is reduced by up to 20% due to the fact that the program of utilisable tools has been so radically extended compared to previous methods of operations.
Rm = tensile strength minimum 1400 N/mm2 HV = Vickers hardness minimum 425 HV 0,2 RZ = roughness depth approximately 2,5 µm µG = reduced and constant thread friction, results in a heightened pre-stressing force FV
a HELICOIL® plus SCREWLOCK® HELICOIL® plus SCREWLOCK® offers the same thread technological advantages as HELICOIL® plus free running. In addition, a screw-locking section is worked in, which serves as a screw-locking device. The locking of the screw is achieved by means of one or several polygons formed coils, which grip the threads of the installed screw. In this way an elastically resilient friction lock is created. The locking moment achieved in this way is comparable with the specifications in DIN 267 Part 15, ISO 2320 or can be individually adapted to problem solutions. Standard values for the lock moments can be found in the table on page 7.
The latest generation of thread inserts
0100/06.02
Thread technology for high strength fastenings Simple – fast – long lasting
www.boellhoff.com
Contents
The material and nut thread strength pre-determined performance limits are increased through the Internationally tried and tested HELICOIL® plus thread technology.
page 3 3 4 5
5–7 8/9
10 11 11a – 17 18
19
wk.baidu.com
System components for installation HELICOIL® plus
Advisory service Standard range of HELICOIL® plus manual and machine taps HELICOIL® plus machine taps für special requirements Thread tolerances of the holding threads Manual taps Combined tap and cutting tools Machine taps Internal thread gauges for HELICOIL® plus threads Manual installation tools, electrical and battery installation tools and installation accessories Mechanical installation tools Accessoires for mechanical installation tools Semi- and completely automatic installation tools, tang break-off tool, unscrewing tools Examples of equipment and special machines for the semi-automatic installation of HELICOIL® plus HELICOIL® plus repair kits, range kits and HELICOIL® nuts Böllhoff and the HELICOIL® plus production Subject to technical modifications without notification. All dimensions in mm.