A kind of use for drawing welding wire pressure mould
Technical field
The utility model relates to drawing welding wire technical field, is a kind of use for drawing welding wire pressure mould that improves drawing lubrication effect in drawing welding wire process.
Background technology
For enhancing productivity, reducing costs, the drawing speed of welding wire is more and more higher, to welding wire drawing lubrication, require also more and more higher, but welding wire surface lubricant residual quantity is extremely low, its lubricant is difficult to evenly spread on welding wire surface causes welding wire surface to produce the defects such as scuffing, easy fracture of wire, seriously reduces production efficiency.
Utility model content
The purpose of this utility model is to provide a kind of use for drawing welding wire pressure mould, its drawing welding wire is effective, improve drawing lubrication effect, and that welding wire surface lubricant residuals content requires is extremely low, drawing speed improves, reduced work mould consumption, have cost low, manufacture handling ease, be easy to install the advantages such as adjustment.
To achieve these goals, the utility model is by the following technical solutions:
A use for drawing welding wire pressure mould, it includes core rod; It is characterized in that:
Inlet region angle and the axial length of this core rod are: 50 °~70 ° and 3.0mm~5.0mm;
Lubricated district angle and the axial length of this core rod are: 40 °~50 ° and 2.5mm~3.5mm;
Compressional zone angle and the axial length of this core rod are: 15 °~25 ° and 1.1~1.4 times of die throat diameter D;
Sizing area angle and the axial length of this core rod are: 0 ° and 0.2~0.4 times of die throat diameter D;
Safety angle and the axial length of this core rod are: 10 ° and 0.2 times of die throat diameter D;
Outlet area angle and the axial length of this core rod are: 85 °~95 ° and 2.0mm~2.5mm.
Described core rod material is 45# steel.
The die throat diameter D of described core rod is 1.0~4.5mm.
The beneficial effects of the utility model are: drawing welding wire is effective, improve drawing lubrication effect, and that welding wire surface lubricant residuals content requires is extremely low, drawing speed improves, reduced work mould consumption, have cost low, manufacture handling ease, be easy to install the advantages such as adjustment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that Fig. 1 is used view.
The specific embodiment
Shown in Fig. 1, Fig. 2: a kind of use for drawing welding wire pressure mould, it includes core rod 1;
Inlet region angle and the axial length of this core rod are: 50 °~70 ° and 3.0mm~5.0mm;
Lubricated district angle and the axial length of this core rod are: 40 °~50 ° and 2.5mm~3.5mm;
Compressional zone angle and the axial length of this core rod are: 15 °~25 ° and 1.1~1.4 times of die throat diameter D;
Sizing area angle and the axial length of this core rod are: 0 ° and 0.2~0.4 times of die throat diameter D;
Safety angle and the axial length of this core rod are: 10 ° and 0.2 times of die throat diameter D;
Outlet area angle and the axial length of this core rod are: 85 °~95 ° and 2.0mm~2.5mm.
Described core rod material is 45# steel.
The die throat diameter D of described core rod is 1.0~4.5mm.
Embodiment (see figure 1) of the present utility model; Wherein, the die throat diameter D of core rod is 3.8mm.
Wherein, inlet region angle and the axial length of this core rod are: 70 ° and 5.0mm;
Lubricated district angle and the axial length of this core rod are: 50 ° and 3.0mm;
Compressional zone angle and the axial length of this core rod are: 25 ° and 1.4 times of die throat diameter D=6.3mm;
Sizing area angle and the axial length of this core rod are: 0 ° and 0.4 times of die throat diameter D=1.8mm;
Safety angle and the axial length of this core rod are: 10 ° and 0.2 times of die throat diameter D=0.9mm;
Outlet area angle and the axial length of this core rod are: 85 ° and 2.0mm.
This core rod carries out quenching heat treatment after processing, and temperature is 840 ℃, and after quenching, working face hardness reaches HRC50~55, finally carries out work grinding, and surface roughness reaches Ra0.8.
During actual use (as shown in Figure 2), supporting pressure capsule, before being assemblied in Working mould, being designed with to be beneficial to of pass size sent into pressure chamber by lubricant with welding wire, and be difficult for returning, increase pressure chamber pressure, make lubricant 2 more easily in stepless action in welding wire 3, guarantee that welding wire 3 drawing tube reducings are smooth and easy.