The Origin of Qingming Festival

Qingming Festival, also known as Pure Brightness Festival or Tomb-sweeping Day, is one of the 24 segments of the Chinese calendar. It normally falls on the 4th or 5th of April, between spring plowing and summer weeding, and is a time to pay respects to one's ancestors and to tidy their gravesite. On this day, whole families, young and old, go to the gravesite of deceased family members to burn incense and perform a ritual offering while clearing away plant overgrowth from the gravesite.

Qingming Festival is when Chinese people visit the graves or burial grounds of their ancestors. Traditionally, people brought a whole rooster with them to the graves visited but the occasion has become less formal over time. The festival originated from Hanshi Day (寒食节, literally, Day with cold food only), a memorial day for Jie Zitui (介子推, or Jie Zhitui). Jie Zitui died in 636 BC in the Spring and Autumn Period. He was one of many followers of Duke Wen of Jin before he became a duke.

Once, during Wen's 19 years of exile, they had no food and Jie prepared some meat soup for Wen. Wen enjoyed it a lot and wondered where Jie had obtained the soup. It turned out Jie had cut a piece of meat from his own thigh to make the soup. Wen was so moved he promised to reward him one day. However, Jie was not the type of person who sought rewards. Instead, he just wanted to help Wen to return to Jin to become king.

Once Wen became duke, Jie resigned and stayed away from him. Duke Wen rewarded the people who helped him in the decades, but for some reason he forgot to reward Jie, who by then had moved into the forest with his mother. Duke Wen went to the forest, but could not find Jie. Heeding suggestions from his officials, Duke Wen ordered men to set the forest on fire to force out Jie. However, Jie died in the fire. Feeling remorseful, Duke Wen ordered three days without fire to honour Jie's memory. The county where Jie died is still called Jiexiu (介休, literally "the place Jie rests forever").

Polyamide enameled round copper wire,class 220

Basic type:QY/220; PIW/220

Size range: 0.060-0.6mm

Material requirement: quality polyimide

Standard in accordance with: GB/T6109.6-2008; IEC 60317-7:1997

Product characteristics and application: Enameled round copper wire can be in 220c environment work continuously, in addition to heat resistant performance as a class 240 polyimide outside, in resistance to cold, resistant to radiation frozen agents, chemical resistance is the precious has outstanding performance. So widely used in atomic response, aerospace, coal mine motor, nuclear energy, military industry etc special field.

Enameled Wire Insulation

Although described as "enameled", enameled wire is not, in fact, coated with either a layer of enamel paint nor with vitreous enamel made of fused glass powder. Modern magnet wire typically uses one to four layers (in the case of quad-film type wire) of polymer film insulation, often of two different compositions, to provide a tough, continuous insulating layer. Magnet wire insulating films use (in order of increasing temperature range) polyvinyl formal (Formvar), polyurethane, polyamide, polyester, polyester-polyimide, polyamide-polyimide (or amide-imide), and polyimide. Polyimide insulated magnet wire is capable of operation at up to 250 °C. 

The insulation of thicker square or rectangular magnet wire is often augmented by wrapping it with a high-temperature polyimide or fiberglass tape, and completed windings are often vacuum impregnated with an insulating varnish to improve insulation strength and long-term reliability of the winding.

Self-supporting coils are wound with wire coated with at least two layers, the outermost being a thermoplastic that bonds the turns together when heated.

Other types of insulation such as fiberglass yarn with varnish, aramid paper, kraft paper, mica, and polyester film are also widely used across the world for various applications like transformers and reactors. In the audio sector, a wire of silver construction, and various other insulators, such as cotton (sometimes permeated with some kind of coagulating agent/thickener, such as beeswax) and polytetrafluoroethylene (Teflon) can be found. Older insulation materials included cotton, paper, or silk, but these are only useful for low-temperature applications (up to 105°C).

For ease of manufacturing, some low-temperature-grade magnet wire has insulation that can be removed by the heat of soldering.This means that electrical connections at the ends can be made without stripping off the insulation first.

The first International Women’s Day

Today is International Women's Day. Do you know the date of the first Women's day? Now let me tell you.

In 1869 British MP John Stuart Mill was the first person in Parliament to call for women’s right to vote. On 19 September 1893 New Zealand became the first country in the world to give women the right to vote. Women in other countries did not enjoy this equality and campaigned for justice for many years.

In 1910 a second International Conference of Working Women was held in Copenhagen. A woman named Clara Zetkin (Leader of the ‘Women’s Office’ for the Social Democratic Party in Germany) tabled the idea of an International Women’s Day. She proposed that every year in every country there should be a celebration on the same day - a Women’s Day - to press for their demands. The conference of over 100 women from 17 countries, representing unions, socialist parties, working women’s clubs, and including the first three women elected to the Finnish parliament, greeted Zetkin’s suggestion with unanimous approval and thus International Women’s Day was the result.

2016 Dubai MEE Exhibition

MEE 2016 (Middle East Electricity) Exhibition is the first big event we are targeting next year. It’s a 3 day event being held from 1st – 3rd March 2016 at the Dubai International Convention & Exhibition Center.

Our company as a professional manufacturer will take part in this exhibition. In this exhibition, you will have a detailed understanding to our magnet wire and our company. The most important things is that you can get a big discount if you choose us in final order.

Zhengzhou LP Industry Co., Ltd looks forward to see you in MEE 2016 Exhibition.

If you visit Middle East Exhibition, you can find us:
Place of the exhibition: Dubai
Exhibition booth No.: SA/F69
Exhibition Period: 1- 3 March, 2016
Contact: Wendy Nine
Mobile: +86-18103865695
Tel: +86-371-65861282
Email: sales@cnlp.cc
Note: If you come to visit during the period of this show with a copy of this invitation, you'll earn 1%-3% discount on the price of the final order!!

copper-clad aluminium wire

The properties of copper-clad aluminium wire include:

• Less expensive than a pure copper wire
• Lighter than pure copper
• Higher electrical conductivity than pure aluminium
• Higher strength than aluminium
• Better solderability than aluminium, due to the lack of the oxide layer which prevents solder adhesion when soldering bare aluminium
• Electrical connections are typically more reliable than pure aluminium
• Typically produced as a 10% or 15% by copper volume product

Chinese New Year (2)

Dinner is usually a feast of seafood and dumplings, signifying different good wishes. Delicacies include prawns, for liveliness and happiness, dried oysters (or ho xi), for all things good, raw fish salad or yu sheng to bring good luck and prosperity, Fai-hai (Angel Hair), an edible hair-like seaweed to bring prosperity, and dumplings boiled in water (Jiaozi) signifying a long-lost good wish for a family.

It's usual to wear something red as this colour is meant to ward off evil spirits - but black and white are out, as these are associated with mourning. After dinner, the family sit up for the night playing cards, board games or watching TV programmes dedicated to the occasion. At midnight, the sky is lit up by fireworks.

On the day itself, an ancient custom called Hong Bao, meaning Red Packet, takes place. This involves married couples giving children and unmarried adults money in red envelopes. Then the family begins to say greetings from door to door, first to their relatives and then their neighbours. Like the Western saying "let bygones be bygones," at Chinese New Year, grudges are very easily cast aside.

The end of the New Year is marked by the Festival of Lanterns, which is a celebration with singing, dancing and lantern shows.

Although celebrations of the Chinese New Year vary, the underlying message is one of peace and happiness for family members and friends.

Chinese New Year (1)

The origin of the Chinese New Year is itself centuries old - in fact, too old to actually be traced. It is popularly recognised as the Spring Festival and celebrations last 15 days.

Preparations tend to begin a month from the date of the Chinese New Year (similar to a Western Christmas), when people start buying presents, decoration materials, food and clothing.

A huge clean-up gets underway days before the New Year, when Chinese houses are cleaned from top to bottom, to sweep away any traces of bad luck, and doors and windowpanes are given a new coat of paint, usually red. The doors and windows are then decorated with paper cuts and couplets with themes such as happiness, wealth and longevity printed on them.

The eve of the New Year is perhaps the most exciting part of the event, as anticipation creeps in. Here, traditions and rituals are very carefully observed in everything from food to clothing.

Little New Year -- December 23 of the Lunar Calendar

December 23 of the Lunar Calendar (Little New Year)

Custom: Worshiping the Kitchen God
December 23 of the Lunar Calendar is Chinese Little New Year.There are many of the customs in addition to people ceremony in Little New Year. Such as Spring dust, stick couplets, cut window, bath and hair, and marriage held，etc. It can be said that off year is the prelude of the Spring Festival. This time is known as "early spring day" by the folk people. The most interesting is worshiping the kitchen god.

As the legend goes, there is a kitchen god in each house who is responsible for the kitchen and oversees the conduct of the family. On this day, the kitchen god returns to Heaven to report the conducts of the family to the Emperor of Heaven. Therefore, worshiping the kitchen god aims to “please him.” People put out some sweet and sticky foods, such as rice dumplings and malted sugar. In this way, the lips of the kitchen god will stuck together, and he cannot report any wrong doings of the family. Thus the family can lead an auspicious life.

Wait for you in MEE 2016 Exhibition

MEE 2016 (Middle East Electricity) Exhibition is the first big event we are targeting next year. It’s a 3 day event being held from 1st – 3rd March 2016 at the Dubai International Convention & Exhibition Center.

Our company as a professional manufacturer will take part in this exhibition. In this exhibition, you will have a detailed understanding to our magnet wire and our company. The most important things is that you can get a big discount if you choose us in final order.

If you visit Middle East Exhibition, you can find us:

Place of the exhibition: Dubai
Exhibition booth No.: SA/F69
Exhibition Period: 1- 3 March, 2016
Contact: Wendy Nine
Mobile: +86-18103865695
Tel: +86-371-65861282
Email: sales@cnlp.cc

Note: If you come to visit during the period of this show with a copy of this invitation, you'll earn 1%-3% discount on the price of the final order!!

Zhengzhou LP Industry Co., Ltd looks forward to see you in MEE 2016 Exhibition.

cheap and fine ecca winding wire

In Zhengzhou LP Industry Co., Ltd can get cheap and fine enameled copper clad aluminum wire.

Enameled Copper Clad Aluminum Wire can be used in:

1, high-frequency transformers, general transformer;

2, the inductor, the electromagnetic coil;

3, motor, household electrical comprising various micro-motors and compressors;

4, the sound coils, special magnet wire;

5, monitor deflection coils;

copper winding wires in china

We are a company which is widely known in the industry for the excellent range of copper products which we offer to our customers. We are a high profile supplier, manufacturer and an exporter of a wide range of Copper Enameled Wire which are made using a superior range of copper which has been procured from well known market vendors who are highly reliable in the industry. Our products are made available to the customers at very reasonable rates in the market. 

We make use of the latest technology available in the market and the best machines available for the manufacture of these precise and accurate ranges of products. We make sure that these products are highly durable and they are supplied to the clients on time as per the specifications mentioned by them. These products can be got customized by the clients as per their requirements. These wires are used as raw materials in a variety of appliances and electrical products in the market and they are widely demanded in the industry. Copper is an excellent conductor of heat and it is non-corrosive in nature. 

Copper Enameled Wire come with coated finish and thin enamel layer insulation that prevents wire surfaces from short circuiting possibilities when used in coil form. Some of the end applications these are used in include for construction of motors, inductors, electromagnets, inductive components like transformers, in generators for transforming mechanical energy into electrical energy and others. Further, the wires feature optimum electrical, mechanical and thermal properties with enamel coating support of different temperature class.

NEMA Standard awg magnet wire

AWG magnetic wires chemical properties and electrical properties:

Products				Enameled copper wires				Enameled aluminum wires
Size Range				Round: 0.10-2.6mm				Round: 0.20-3.0mm
Chemical     Properties
Type		Acids	Alkaline		Transformer  oil	benzol	alcohol		FreonR-12	FreonR-22	FreonR134a
UEW		good	very good		good	very good	unclassified		No good	No good	No good
PEW		very good	good		good	good	good		good	No good	No good
AIW		very good		very good	good	good	good		very good	very good	very good
EI/AIW		very good	good		very good	very good	very good		very good	very good	very good
Physical / thermal/ electrical properties
Physical Properties						Thermal perties			Electrical properties
Type	Adherence		Flexibility		Abrasion resistance	Unidirectional scraping	Heat shock		Thermal class	Voltage applicaion	Voltage application after humidity
UEW	good		very good		unclassified	very good	good		B 130	very good	good
PEW	very good		very good		good	good	good		F 155	very good	very good
EIW	very good		very good		very good	No good	very good		H 180	very good	very good
EI/AIW	very good		very good		very good	No good	very good		C 200	very good	very good

Paper covered workshop process characteristics

1,workshop with double glazed windows all closed, use air-conditioning temperature and humidity ; installing of pressurized air purification equipment to enable access to the indoor air are filtered out and to indoor air pressure higher than the outdoor 5Mpa, outdoor dust can not enter the room;

2, staff. Materials conversion plant into the air slower to go through two doors dust transition, staff ID card with the wind pouring channel identification, non-staff can not freely access；

3, semi-closed road track for decoration, to prevent dust falling slip line wear conductive pollution affect the environment. The workshop set up in 10 dustfall test points. Dust regularly shop monitor the concentration measurement;

4,Multi-motor road track for decoration line PLC control method, energy saving and noise, low failure rate;

5,wrapped with constant tension compensation control technology , package of paper even, smooth;

6, stringing guide roller is non-metallic materials, metal powders and conductive materials to prevent pollution;

7, contiuous use of wire hang test device, test conductor surface quality.

Magnet Winding Wire Suppliers

Magnet wire / winding wire is an insulated copper or aluminum electrical conductor used in motors, transformers and other electromagnetic equipment. When wound into a coil and energized, magnet wire creates an electromagnetic field.

Magnet wire plays a critical role in three areas of energy transformation: electrical to electrical, electrical to mechanical, and mechanical to electrical.

Besides its uses in energy transformation, magnet wire is vital to a wide range of communications applications. Magnet wire is used in coils in products such as computers, telephones, cell phones, video games and televisions.

Resistance Calculations of enameled wire

Resistance of a conductor (e.g. copper wire)

The resistance R of a copper wire with the length l can be calculated with the following formula:

where
R is the resistance of the conductor in Ohms
l is the length of the conductor in meters
ρ is the electrical resistivity (also known as the specific electrical resistance) of a conductor. 
A is the cross-sectional area, measured in square millimeters
π is the mathematical constant
d is the nominal diameter of the wire in millimeters

Resistivity ρ

Electrical resistivity (also known as specific electrical resistance) is a measure of how strongly a wire opposes electric current. A low resistivity indicates a wire that readily allows the movement of electrical charge. Copper has a resistivity of 0.0171 Ohm · mm²/m and is, therefore, one of the best conductors for electric current (slightly behind pure silver).

Conductivity γ

Electrical conductivity or specific conductivity is a measure of a material's ability to conduct an electric current. It is the reciprocal (inverse) of the electrical resistivity. Annealed copper wire has a minimum conductivity of 58 S*m/mm², which is equivalent to 100% IACS (International Annealed Copper Standard), actual values typically reach 58,5-59 S*m/mm²

Thermal coefficient of electrical resistance

The electrical resistance is depending on the temperature the wire is exposured to. This relationship between resistance and temperature is expressed by the thermal coefficient of resistance α. To calculate the resistance of a coil or wire at the temperature T you can use the following formula:

where
α is the thermal coefficient of resistance
RT is the resistance of the coil at the temperature T
R20 is the resistance of the coil at 20°C 

Enamelled winding wires

Product Instruction: Enamelled winding wire is made up of conductor coated many times by insulation material after drawing or extruding from oxygen-free copper rod or electrical aluminum rod.

Product Usage: Power Transformer loll and dryl, Traction Motor &Transformer (Generator, Electromotor) and windings for all kinds of electric appliance

Product classification

As per conductor materials- Copper, Aluminum

As per conductor cross-section. Round, Rectangular

Polyester film and sintered wire

Sintered wire that is coated with synthetic resin film adhesive material that is made of composite film wrapped in the (copper, aluminum) wire. And then by sintering the membrane and the membrane between the membrane and into one band between conductor made of wires, insulation materials, polyester film, polyimide film and Dupant, and waterproof film or polyimide corona resistant film, etc, the conductor shape, flat wire, round wire, according to the standard enterprise standard or customer requirements.