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From October 7 to 10, 2025, Shanghai Jinggong Technology Co., Ltd. will make its debut at the Crocus Expo in Moscow, participating in Fastenex—Russia’s leading international exhibition for fasteners and industrial supplies. We will showcase a range of precision stamping molds and high-end fastener solutions at Booth A3047, Hall 1, Pavilion 4, and welcome global clients to visit us. Exhibition Details: Event: Fastenex Russia International Fastener & Industrial Supply Exhibition Date: October...
On September 4, 2025, the China (Chongqing)-Belarus China-Belarus Industrial Park "Belt and Road" Investment Opportunities Promotion Conference was held in Yuzhong District, Chongqing. As a flagship project of the China-Belarus joint Belt and Road Initiative, the China-Belarus Industrial Park presented over 100 cooperation opportunities across 13 categories to Chongqing, attracting over 200 companies from Chongqing and western China. Hou Hui, General Manager of Chongqing Henghui Precision Mold...
Henghui Precision Molds empowers high-end manufacturing with micron-level precision
Since its establishment in 2009, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as Henghui Precision Molds) has specialized in the research, development, and production of micro-precision screws. Leveraging its exceptional micron-level manufacturing capabilities, Henghui Precision Molds has become a trusted partner for the aerospace, medical device, precision electronics, and micro-mechanics sectors. Adhering to the core philosophy of "Precision in Microscopy, Stability in...
Comparison Between Cold Heading Process and Cold Extrusion Process
Cold heading and cold extrusion are essentially deformation processes under similar conditions, but they differ in their operational methods. Cold heading is a forging deformation process typically used for smaller workpieces and is commonly employed in the fastener industry. In contrast, cold extrusion involves the extrusion deformation of larger workpieces and has a broader range of applications. What is Cold Extrusion? Cold extrusion is a processing method in which a metal blank is placed...
Structural Safety Impact of Stamping Dies
Stamping dies are the primary process equipment for stamping processing, and stamped parts are produced through the relative movement of the upper and lower dies. During processing, the continuous opening and closing of the upper and lower dies poses a serious threat to the safety of operators if their fingers repeatedly enter or remain in the die closure area. (I) Main Components of Dies, Their Functions, and Safety Requirements 1. Working Components The punch and die are the working...
On August 20, 2025, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold") officially completed packaging for its independently developed high-end CNC parts processing machine, which will soon be shipped to a Russian customer. This marks another milestone for Henghui Mold in the export of high-end equipment, following the initial collaboration between the two parties earlier this year, and signifies further international recognition of its "Made in China"...
On August 28, 2025, Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold") announced that its independently developed custom-part development process and complete mold set have passed the rigorous inspection of a Brazilian customer. The first batch of products has been packed and shipped to South America. This order further recognizes Henghui Mold's technological strength in high-end custom parts and injects new momentum into China-Brazil precision manufacturing...
In the field of precision manufacturing, micro-screws are like the "red blood cells" of industry. Despite their tiny size, they carry crucial missions such as spacecraft's flight, the precise operation of medical equipment, and the lightweighting of consumer electronics. Shanghai Yijun Precision, founded in 2013, is a hidden champion in this niche market. Thanks to a decade of dedicated technological development and digital innovation, the company has become one of the few global manufacturers...
In the field of precision manufacturing, the technical strength of a mold supplier directly determines the ultimate quality of the end product. Since its establishment in 2013, Shanghai Yijun Precision has rapidly risen to become a leading high-end mold supplier in the Yangtze River Delta region, leveraging millimeter-level precision as its core competitiveness. With an ISO9001-certified production system and a fully automated digital production line integrating CNC turning centers and optical...
On August 7, 2025, the I.C.E. Cultural Exhibition Hall in Hanoi, Vietnam, was bustling with activity as the three-day Vietnam International Industrial Manufacturing Technology, Equipment, and Fastener Exhibition entered its second day. Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold"), a leading company in the precision mold industry, showcased a variety of independently developed high-end molds and intelligent solutions at booth E16. The exhibition...
On August 7, 2025, Hou Hui, General Manager of Chongqing Henghui Precision Mold Co., Ltd. (hereinafter referred to as "Henghui Mold"), led a technical team to Moscow, Russia, to provide technical support to a local aviation parts manufacturer. The team successfully resolved key technical challenges in machining complex curved titanium alloy surfaces, helping the customer resume production and improve process quality, earning high praise from the Russian side. This initiative demonstrates the...
During the process of pressing hexagonal stock into round rods, failure to achieve an ideal flat surface (as indicated by the red circle) may be caused by incorrect pressing methods, issues with the die or grinding head, uneven material stress, or unreasonable operating parameters. Below is a detailed analysis and specific solutions: I. Common Cause Analysis Incorrect Pressing Method: If the edges of the hexagonal stock lack a adhesive layer, incorrect methods (e.g., oversized grinding head,...
Ningbo Yijun Technology Fulfills Commitment with Shipment of High-Precision Molds to U.S. Client Release Time: October 26, 2023Source: Ningbo Yijun Technology Co., Ltd. (Ningbo, China) – Ningbo Yijun Technology Co., Ltd. has completed preparations for a batch of high-precision molds customized for a U.S.-based client. After passing all final inspections, the molds have been professionally packaged and are ready for shipment to the United States. “Safe and on-time delivery of every precision...
What causes excessive wear on Auto Parts Micro Screws punches?
Auto Parts Micro Screws are manufactured using a special process called cold stamping, which processes materials (metal or non-metal) into parts (or semi-finished products). These are called cold Auto Parts Micro Screws (commonly known as cold stamping dies). Stamping is a pressure processing method in which a die mounted on a press applies pressure to the material at room temperature, causing separation or plastic deformation, thereby producing the desired part. 1. Small clearance in Auto...
If you need an Auto Parts Micro Screws, you need to find a suitable manufacturer
If you need an Auto Parts Micro Screws, you absolutely need to find a suitable manufacturer. This ensures the quality of the custom mold. If you're looking for a long-term partnership, quality is crucial. I believe that as long as we can confirm the relevant quote, we can find a cost-effective manufacturer to work with. Furthermore, large manufacturers offer a wide range of services, making it more desirable to work with high-quality manufacturers. In fact, if you can find the right Auto Parts...
Solutions for Unstable Head Thickness of Pan Head Screws with Washer
To address the instability in head thickness of pan head screws with washers and the issue of head diameter exceeding tolerances due to the narrow washer outer diameter tolerance of only 0.2mm, a systematic optimization across four dimensions is required: mold design, process parameters, material control, and quality inspection. The specific solutions are as follows: I. Mold Design and Manufacturing Optimization Precise Control of Punch-Die Clearance: The clearance between the punch and die...
What are the basic characteristics of Aerospace Micro Screws?
Many of the products we see in daily life are Aerospace Micro Screws, ranging from aircraft carriers to pins. 1. Aerospace Micro Screws are manufactured by stamping under the premise of low material consumption. Their parts are light in weight and have just the right hardness. After the sheet metal undergoes plastic deformation, the internal structure of the metal is improved, which increases the strength of the Aerospace Micro Screws. 2. Aerospace Micro Screws have high dimensional accuracy,...
Material selection for Aerospace Micro Screws
There are three main processes for Aerospace Micro Screws: punching, bending, and stretching. Different processes have different requirements for plates. Material selection should also consider the selection of plates based on the general shape of the product and the processing technology. 1. Aerospace Micro Screws punching requires that the plate should have sufficient plasticity to ensure that the plate does not crack during punching. Soft materials have good punching performance, and after...
What is cold stamping for Aerospace Micro Screws?
Aerospace Micro Screws are light in weight, thin in thickness and good in rigidity. Its dimensional tolerance is guaranteed by the mold, so the quality is stable and generally no mechanical cutting is required for use. The metal structure and mechanical properties of Aerospace Micro Screws are better than the original blanks, and the surface is smooth and beautiful. The production of large quantities of medium and small parts for Aerospace Micro Screws generally uses compound molds or...
Processing technology requirements for Aerospace Micro Screws
First, the workpiece or blank is made by the method of Aerospace Micro Screws, and external forces are applied to plates, strips, pipes and profiles through punches and dies. The forming processing method of the workpiece of the required shape and size is obtained by plastic deformation or separation, and the workpiece obtained is a small Aerospace Micro Screws. Aerospace Micro Screws are formed by applying external forces to plates, strips, pipes and profiles by presses and dies, so that they...
Source: Chongqing Henghui Mould Co., Ltd. Chongqing – Recently, a busy scene unfolded at the production and logistics center of Chongqing Henghui Mould Co., Ltd. A batch of high-precision stamping dies, destined for Russia, Brazil, and Turkey, formally commenced their journey after passing final rigorous quality inspections and being carefully packaged and systematically loaded into trucks. This shipment marks another instance where Henghui Mould has honored its firm commitment to customers...
What Causes an Uneven Bearing Surface on Hex Socket Head Cap Screws?
An uneven bearing surface on hex socket head cap screws can result from material issues, machining process defects, improper clamping, tooling problems, heat treatment deformation, or design and mold issues. Below is a detailed analysis: I. Material Issues Non-Uniform Material: If the internal structure of the raw material is inconsistent, with defects such as segregation or inclusions, the varying deformation resistance in different areas during processing can easily lead to an uneven bearing...
What aspects should be paid attention to when designing Auto Parts Micro Screws?
Auto Parts Micro Screws play a vital role in the quality of stamping parts. The quality of the die and the early design of the die are key factors affecting the quality of the die. What should be paid attention to in die design: (1) The designed Auto Parts Micro Screws must meet the use and technical performance of the product and be easy to assemble and maintain. (2) The designed Auto Parts Micro Screws must be conducive to improving the utilization rate of metal materials, reducing the...
Solutions for Frequent Fracture of Nut Machine Feed Spring
To address the frequent fracture of feed springs in nut machines, a systematic adjustment from four aspects—spring selection, installation position, mechanical coordination, and environmental control—is required. The specific solutions are as follows: I. Spring Selection Optimization: Matching Load and Compression Load Matching Root Cause: If the spring's allowable compression is 30% but the actual compression reaches 40%, it leads to plastic deformation and fracture. Solution: Recalculate the...
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