Making method of three-dimensional hollowed-out chicken with tired silk process

Abstract

The invention discloses a manufacturing method of a three-dimensional hollowed-out chicken by a wire accumulating process, and belongs to the technical field of copper handicraft processing. The method comprises the following steps that copper wires of 0.2-0.25 mm are selected, drawn and then woven into net-shaped wire accumulating units; bending a frame of each part of the three-dimensional chicken by using a copper bar of 1-1.2 mm; embedding the wire accumulating unit into the frame and temporarily fixing the wire accumulating unit; all the parts are welded in a segmented mode through acetylene flame at the temperature of 800-850 DEG C, and cooling is conducted to the temperature below 250 DEG C after And cleaning, trimming, calendaring and adjusting the three-dimensional radian to form a finished product. According to the characteristics of high hardness, high melting point and poor ductility of a copper material, the problems of easy breakage, unstable welding, difficult modeling fixation and the like in the manufacturing process of the copper accumulated wire artware are solved by adjusting parameters such as the diameter of a copper wire, the thickness of a frame and the welding temperature, and the finished product has fine textures and a three-dimensional shape, can be used as an ornament or an ornament, and is worthy of popularization and application. And the types of copper artware are enriched.

Description

Technical Field

[0001] The present invention relates to the field of traditional metal handicraft production, in particular to a method for producing a three-dimensional hollow chicken shape based on a filigree process, specifically using copper as a raw material, and belonging to the technical field of copper handicraft processing. Background Art

[0002] As one of China's traditional metalworking techniques, filigree crafts are widely used in the production of gold, silver, and copper crafts. Traditional copper filigree crafts are primarily two-dimensional, woven with relatively thick copper wire, resulting in a rough texture and weak three-dimensional expression. Compared to silver, copper has a higher hardness and melting point (approximately 1083°C), but slightly lower ductility. Using the same silver filigree technique directly can easily lead to problems such as wire breakage, loose welds, and difficulty in securing the shape. Existing three-dimensional copper crafts are mostly cast or chiseled, which are subject to drawbacks such as heavy weight, insufficient detail, and long production cycles. These drawbacks make them difficult to meet the modern market demand for refined, lightweight three-dimensional copper crafts. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for making a three-dimensional hollow chicken using a filigree process based on the characteristics of copper materials, so as to solve the problems of easy breakage of copper wire in the filigree process, poor stability of three-dimensional modeling, and great difficulty in welding, and to realize the production of a hollow chicken copper handicraft with both fine texture and three-dimensional shape.

[0004] The present invention is achieved through the following technical solutions: In step A, a copper wire slightly thicker than silver is selected and drawn with lubricant to reduce the risk of breakage due to its high hardness. Two strands of copper wire are braided to enhance the structural strength of the interlaced unit and adapt to the slightly lower ductility of copper. The mesh size is controlled to ensure the hollowing effect while maintaining overall firmness. In step B, thicker copper strips are used to create the frame. The high hardness of copper enhances the support of the three-dimensional shape, providing a stable foundation for the subsequent embedding and fixing of the interlaced units. Details such as the reserved feather-shaped notches help enhance the vividness of the finished product. In step C, use a small copper hammer to tap and fix it to avoid damage to the copper wire due to improper tool material; use thin copper wire to temporarily fix the frame joint to prevent the wire unit from shifting during the welding process and ensure production accuracy; In step D, the welding temperature is increased due to the high melting point of copper, and a segmented welding process is used to reduce deformation of the copper caused by high temperature. The cooling temperature after each welding segment is controlled to avoid cracking of the copper due to internal stress caused by sudden cooling. In step E, sulfuric acid solution is used for cleaning, which can effectively remove oxides on the surface of the copper material; a stainless steel calender is used for calendering treatment, and the glossiness of the finished product surface is improved by using its hardness to match the copper material; the three-dimensional curvature is adjusted by shaping pliers to make the finished product more three-dimensional and vivid.

[0005] The beneficial effects of the present invention are as follows: by adjusting parameters such as the copper wire diameter, frame thickness, and welding temperature, the characteristics of copper are adapted and many difficulties in the production of copper filigree crafts are solved. The segmented frame design is combined with the filigree of two copper wires to achieve the stable shaping of a three-dimensional hollow chicken. The combination of the mesh structure and the feather-shaped gaps enhances the flexibility of the shape. The segmented welding and reasonable cooling process reduce the thermal damage of the copper material and significantly improve the structural strength of the finished product. The combination of fine copper wire and precise shaping not only retains the delicate texture of the filigree craft, but also breaks through the limitations of traditional flatness. The finished product is both artistic and practical and can be used as an ornament, a decorative piece, etc., enriching the category of copper crafts. DETAILED DESCRIPTION

[0006] Select 0.22mm copper wire with a purity of 99.5%. Use a steel drawing plate with graphite lubricant to draw it four times until the diameter error is ≤0.03mm. Take two strands of copper wire and weave them in a "cross" shape on a work surface covered with fine sandpaper using a wooden pick. Form a 1.2mm mesh unit. Use tweezers to comb the copper wire direction every 4cm to avoid entanglement. Use 1mm copper bars to bend the head frame (2.8cm long, 1.1cm maximum diameter), the trunk frame (4.2cm long, 2.2cm maximum diameter, with two 1.6cm x 1.1cm hollow windows on the side), the wing frame (3.2cm arc radius, 0.35cm deep feather notches at 0.6cm intervals on the edge), and the tail frame (65° fan-shaped spread angle) using a bending die. Use small scissors to cut the wire mesh units into shapes that match the frames. After embedding, tap them lightly with a copper hammer to make them fit the frames. Wrap 4-5 turns of 0.12mm copper wire around the frame joints to secure them. Keep the winding spacing at 0.4cm. Use a brush to apply borax-based brazing powder to the joints. Use a miniature acetylene torch to first weld the torso and head at 820°C (welding time: 10-12 seconds). Cool to below 250°C before welding the wings to the torso (830°C, 12-14 seconds). Cool again to below 250°C before welding the tail (840°C, 16 seconds). Soak the finished product in 10% sulfuric acid solution for 6 minutes, rinse with clean water, and use a round-head file to trim the burrs on the edges. Then use a stainless steel calender to repeatedly calender along the filigree texture. Finally, use shaping pliers to adjust the wing upward angle to 35° and the tail expansion angle to 65° to obtain the three-dimensional hollow chicken product.

Claims

1. A method for making a three-dimensional hollow chicken using a filigree technique, characterized in that: The following steps are involved: A. Select 0.2-0.25mm copper wire and use a steel drawing plate with lubricant to repeatedly draw it until the diameter is uniform. Use a wooden drawing bar to cross-weave two strands of copper wire on a frosted pad to form a mesh unit. The single mesh size is controlled at 1-1.5mm. B. Use 1-1.2mm copper bars to bend the frames of the head, torso, wings, and tail of the three-dimensional chicken. The head frame is oval, the torso frame is ellipsoidal with a reserved hollow window, and the wing frame is arc-shaped with a reserved feather-shaped notch. C. Cut the interlaced units obtained in step A into shapes that match the frames. Use tweezers to insert them into the frames, tapping them gently with a copper hammer as you insert them. Wrap 0.12mm thin copper wire around the frame joints for temporary fixation. D. Apply brazing powder (borax-based) evenly to the joints of each component. Use an acetylene flame at 800-850°C to weld in sections, first welding the torso to the head, then the wings to the torso, and finally the tail. After welding each section, allow it to cool naturally to below 250°C. E. After welding is completed, use 10% sulfuric acid solution to clean the surface oxides and residual flux, use a round-head file to trim the edges, and then use a stainless steel calender to calender the wire surface. Finally, use shaping pliers to adjust the three-dimensional curvature to form a hollow chicken product.