Die-casting Phase Shifter

Part name	Telecom phase shifter housing	Material	AlSi12
weight	380g	Tolerance standard	ISO 2768-mk
Production equipment	280T Die Casting Machine	Surface finish	Oxidation
Production place	Guangdong, China	service	OEM
Process route	Die casting-deburring-CNC-oxidation
Application field	Telecommunications, communications

The phase shifter is a kind of microwave components specially used to change the phase of the transmission signal. It is widely used in various communication systems, radar systems, microwave instruments and measurement systems, and phased array radars. It is precisely these wide-ranging applications. Promoted the rapid development of phase shifters. In the early 1960s, a U-shaped variable telescopic coaxial phase shifter was born in the United States. It can achieve a phase shift of 3000, but it can only work at a single frequency of 30MHz. The PIN diode phase shifter appeared in the 1970s. As a digital phase shifter that first appeared and is still widely used, it has the advantages of easy control of digital signals, fast switching speed, small size, but narrow frequency band and insertion The disadvantage of greater loss is also obvious. Later, Reggia. The Spencer ferrite phase shifter appeared. It has a small insertion loss and a large phase shift range, but it is also very large. It is mainly used for phased array scanning. Microelectronics technology has made great progress in the 1980s, and this progress directly promoted the vigorous development of phase shifters in this field. The dielectric phase shifter is the dominant in this era, when it has been widely used in various antennas. Joines, W. At that time, T had proposed an application to L. S-band dielectric phase shifter, this kind of phase shifter has good phase shift, insertion loss, reflection performance, but its structure is relatively complicated, and the design and processing are very difficult. After entering the 1990s, some phase shifters began to enter the field of microwave integrated circuits. They have high integration, high operating frequency and wide bandwidth. The most important of these is the emergence of MMIC-based phase shifters, which have good temperature stability, large tolerance range, and mature manufacturing technology, but at the same time the insertion loss is large and the power capacity is relatively small. In the 21st century, there are more types of phase shifters, such as circulator reflection type phase shifters, coupler type phase shifters, path selection type phase shifters and loaded linear phase shifters. It is believed that people's continuous exploration of new materials and new processes will surely make the phase shifter move in the direction of high performance, miniaturization and low cost.

The importance of aluminum alloy die castings in the telecommunications field

Due to the excellent material properties of aluminum alloy die castings, its application range is becoming wider and wider. According to survey data, in addition to showing great application strength in the automotive field, aluminum alloy die castings also occupy a pivotal position in the production of shells for communication equipment. On the one hand, aluminum alloy die castings themselves exhibit a series of advantages such as light weight, high strength, and good shock absorption. On the other hand, due to the rapid development of China’s IT industry and communications industry, it drives the development of aluminum alloy die castings. The demand becomes larger. Corresponding to this is the continuous technological innovation and productivity efficiency improvement of the domestic die-casting industry to meet the increasing demand for aluminum alloy die-casting parts.

As an enterprise specializing in the production of aluminum alloy die-casting parts for many years, Shenzhen Zhongzhu Technology has rich technology and experience in the die-casting of filter cavity. The filter cavity is an important part of the frequency modulation equipment of the communication system base station. With the continuous improvement of green industry and energy-saving production requirements, base station terminal designers need to continuously integrate and optimize previously independent components, which makes the filter cavity structure more complex and precise.

Because the internal structure of the filter die-casting cavity is too complicated, there are many resonance signal pillars in the cavity, and the depth of the cavity is large, it is easy to cause the following casting defects during the die-casting process:

1. The cavity wall and resonance signal are poorly formed, which is easy to produce shrinkage and pores. 2. Due to the deep cavity, the exhaust is not smooth during the die-casting process, so that the resonance signal column after molding is exposed after processing. 3. Casting After molding, too much residual release agent on the resonance signal column and cavity surface seriously affects the appearance of the product.

Shenzhen Zhongzhu Technology has analyzed the above-mentioned problems in casting through its own years of experience and technology, and summarized and concluded a set of its own solutions.

China Casting Technology believes that it is necessary to solve the problem of poor formation of the filter die-casting cavity. First, the method of eliminating the die-casting of the groove part can be used to replace it with one-time molding in the subsequent machining, so as to avoid the vertical single-column form. For casting defects such as shrinkage holes, squeeze pins can also be set up near the resonance signal column far away from the sprue. With the increase of the squeeze pin, after the injection is finished but the casting has not yet solidified, the resonance signal column is loose. Fill the parts to reduce the existence of pores and shrinkage; Second, the vacuum process is adopted, and the vacuum equipment is connected to the vacuum exhaust valve in the cavity through the vacuum pipe in the die-casting project to create a vacuum environment inside the cavity to solve the exhaustion during die-casting. Gas problem; 3. After the mold is opened, apply automatic spraying technology to adjust the number of nozzles and the flow rate of each part according to the shape characteristics of each part in the cavity, so as to ensure that there is enough release agent for complex parts and avoid The product burns, and the release dose of simple parts will not be too much and the assembly waste will not be too much.

The technology of Shenzhen Zhongzhu Technology in the filter die-casting cavity is quite mature, and it can carry out mass and stable production, which can meet the product needs of enterprises in the telecommunications field. At the same time, it can also provide our valuable production experience for our peers.

Customer Photos

Product packaging

FAQ

Q1:What the surface treatment ?

A1: For the suface treatment,there are

1. Mechanical surface treatment: sandblasting, shot blasting, polishing, rolling, polishing, brushing, spraying, painting, oiling, etc.

2. Chemical surface treatment: blue and black, phosphating, pickling, electroless plating of various metals and alloys, TD treatment, QPQ treatment, chemical oxidation, etc.

3. Electrochemical surface treatment: anodic oxidation, electrochemical polishing, electroplating, etc.

4. Modern surface treatment: chemical vapor deposition CVD, physical vapor deposition PVD, ion implantation, ion plating, laser surface treatment, etc.

Q2: What the general anozied layer is thick?

A2:Different anodized has a different oxide layer

* Ordinary anodized 5-30μm

* Hard anodized 25-150μm

Q3:What type of material we can process?

A3:Stainless Steel :SS201,SS301, SS303, SS304, SS316, etc
Steel: 4140, 4340, Q235, Q345B, 20#, 45# etc

Brass:HPb63, HPb62, , HPb59, H59, H68, H80etc
Copper : C11000,C12000,C12000 C36000 etc
Aluminum : AL2024,AL6061, Al6063, AL7075, AL5052, etc
Titanium : TA1,TA2,TB1,TC4,TC18, TI GRADE2,GRADE5

CNC processing of plastic materials:

*ABS - (Natural / Black / flame retardant /)

*PC / polycarbonate - (transparent / Black)

*ABS + PC - (transparent / Black)

*PMMA / acrylic - (transparent / Black)

*PA / Nylon - (Natural / Black / 30% GF)

*PP / PP - (Natural / Black / 20% GF)

*POM / acetate / Delrin - (black / white)

*PPS / PPS

*PVC / PVC (white / gray)

*PTFE / PTFE

*PEEK / PEEK

*Epoxy tool board

Precision metal processing has absolute advantages in Guangdong, China. We have a perfect production and processing industry chain here, and the production cycle is 95% guaranteed. Our engineers will provide the most high-quality solutions to escort your project after understanding your needs in all aspects!

http://www.zhong-zhu.com/