Formwork Combin Nuts

Casting iron formwork combin nuts,also known as wing nuts,are essential fastening devices used in construction,particularly in all types of formwork systems.They are used to secure and tighten formwork panels together,enabling them to withstand the pressure exerted during concrete pouring and curing.

CONTACT NOW DOWNLOAD

Details

Tags

This ensures the desired shape and structure,making combin nuts critical for providing a strong and secure connection between formwork panels and tie rods.

Applications in Construction

WRK offers types of formwork combin nuts for customer’s different requirements, popular standard sizes as following specifications:

Size	D15/17*10mm	D15/17*10mm	D15/17*10mm	D15/17*10mm	D15/17*10mm	D20/22*10mm
Design
Base Dia.	120*120mm	120*120mm	120mm	120mm	140mm	90*110mm
Weight	1.10kg	1.25kg	1.00kg	1.10kg	1.38kg	0.96kg
Materials	Ductile cast iron JIS FCD450
Surface	Nature/Yellow galvanized/Sliver galvanized
Packages	Bags/Pallets/wooden cases
Loading capacity	More than 180KN
Application	Formwork tie rod system
Related Products	Fomwork tie rod, Waller plate, Steel cone, hex nut, rapid clamp etc.
OEM	Customer’s design available

Material Selection

To produce these nuts by casting ductile cast iron,the process involves several steps

Casting of Basic Cast Iron ,The first step is to cast basic cast iron with the proper chemical composition,characterized by high graphitization nodulizing ability.This is ensured by an appropriate high content of carbon and silicon. WRK technology department has rich experience of materials to ensure quality reached highest level.

Addition of Nodulizers,such as magnesium,are added to the liquid iron to promote the formation of spheroidal or compacted form of graphite,which is specific to ductile irons.A certain quantity of magnesium is necessary to obtain the graphite in spheroidal or compacted form.

In-Ladle Treatment ,One of the common methods for nodulizing ductile iron is the in-ladle treatment process.Magnesium-ferromagnetic-Si-Mgis placed into a deep pocket at the bottom of the ladle,along with a steel scrap barrier or calcium carbide.This process affects the quality of ductile iron produced,depending on the percentage of magnesium-ferromagnetic used and the nodulizing technique.

Thread Rolling,After the casting process,the nuts are processed with thread rolling,which is a specialized work for ductile iron casting.In the building formwork system, combin nuts work by being typically used in conjunction with formwork tie rods.They secure and tighten formwork panels together,ensuring that the panels can withstand the pressure during concrete pouring and curing.This process is critical for maintaining the shape and structure of the concrete as it sets.To guarantee the quality of the casting iron nuts

ISO Certification ,The foundry should be ISO 9001-certified,which ensures a certain level of quality control and process management.

Read More About construction formwork accessories

Quality Control Severe quality control measures should be in place to ensure that the formwork tie nuts meet the required standards and perform as expected in construction projects.

Material Selection Using ductile iron casting JIS FCD450/500，ensures the nuts have the necessary strength and durability for use in construction.