Question 2: What is the meaning of the trolley case material of brushed Brushed means a process of linear polishing for the surface of the metal, it looks like a sense of metal, which prevents minor scratches, the surface of the dirt-resistant, and is not easy to leave fingerprints. The most advanced models are definitely still, with LV leading the traditional hand-stitched leather trolley cases.
Question three: what is brushed pu ah PU is the abbreviation of Polyurethane, Chinese name for polyurethane referred to as polyurethane.
Polyurethane, also known as microfiber leather, quality is better than PVC (commonly known as Western leather). Now clothing manufacturers are widely used in the production of such materials, commonly known as imitation leather clothing. In addition, good bags are mostly imported PU leather;
PU with leather is a kind of its reverse is the second layer of cowhide leather, coated with a layer of PU resin, so it is also known as film cowhide. Its price is cheaper, high utilization rate. With the changes in the process is also made into a variety of grades of varieties, such as imported two-layer cowhide, due to the unique process, stable quality, variety of novelty and other characteristics, for the current high-grade leather attack, the price and grade are no less than the first layer of leather.
PU leather and leather bags have their own characteristics, PU leather bags look beautiful, good care, lower prices; leather is expensive, care trouble, durable.
Brushed PU, is to make a brushed pattern effect on the surface of PU leather.
Question 4: What is the material of the wire used for wire drawing What are you talking about pulling the wire, iron wire? Or stainless steel? Iron Q195, Q235, Q195L, Q235, stainless steel 201, 306, 304 、、、、、
Question 5: How much does the brushed leather seat 1, depending on what place to do, 4S stores and roadside stores prices to differ in 2-5 times or so; for example, the roadside store 2000 yuan in the 4S store to 5000 yuan or so; 2, the use of materials Different; the same cowhide should also be divided into head layer, two layer, etc.; different cowhide and imported, domestic, buffalo, buffalo points; so the price is definitely different; 3, the quality of the process is different, but also affects the price of the factors; at the same time, because of the region, dealers are different, the price will be absolutely different; In summary, only to be able to talk about in the Beijing area, the general roadside stores, two layer of skin, do down the price of 1000-1500 yuan or so; for reference. 1500 yuan or so; for reference.
Question 6: A4L package leather, ready to use the brushed leather, how much is the general 500 it, because the brushed leather has nothing to do with the leather
What are the indicators of automotive decoration with leather control?
Automotive leather quality requirements for decoration is divided into sensory requirements and physical and chemical properties of two major parts. Due to the special nature of the automobile use environment, in addition to general physical properties, but also increased light resistance, wear resistance, flame retardant, fogging value, odor, etc., and toxic and harmful substances - banned azo dyes and free formaldehyde requirements.
(1) sensory requirements
1) The thickness of the whole leather is basically uniform, no greasy feeling, no odor. 2) The leather body is flat, soft, plump and flexible.
3) The front leather is not cracked, no tube wrinkles, the main parts should not be loose surface, the finishing leather is uniformly coated, the coating is firmly adhered to, no slurry, no cracking slurry. Velvet leather velvet uniform, the color is basically the same.
(2) Physical and chemical properties
Physical and chemical performance indicators for the seventeen:
1) Depending on the density: 0.6g/cm3 ~ 0.8g/cm3.
2) Anti-tension: according to the thickness is divided into four types. Type I ≥ 100N, Type II ≥ 120N, Type III ≥ 130N, Type IV ≥ 140N.
3)Elongation at break: 35% to 70%. 4)Tearing force: divided into four types according to thickness. Type I ≥ 16N, Type II ≥ 20N, Type III ≥ 20N, Type IV ≥ 25 N.
5)Color fastness to friction: dry rubbing ≥ 4/5 grade, wet rubbing ≥ 4, alkaline sweat, gasoline, neutral soap and other environments, color fastness to friction ≥ 4 grade.
6)Folding fastness: 100000 times without cracks. 7)Light resistance ≥4 grade. 8)Heat resistance≥4 grade.
9)Abrasion resistance: no obvious damage, flaking. 10)Coating adhesion fastness ≥3.5N/10mm. 11)Flame retardant ≤100mm/min. 12)Fogging value ≤5mg. 13)Odor ≤3 level. 14)pH value ≥ 3.5.
15)pH dilution difference ≤ 0.7.
16)Prohibited azo dyes ≤ 30mg/kg. 17)Free formaldehyde ≤ 20mg/kg.
Question 7: What kind of leather is used for high-grade automobile interiors? Leather material is mainly divided into several:
Domestic imitation leather features: PU leather material, Jiage pro-people, value for money
Imported microfiber leather features: wear-resistant, cold-resistant, breathable, ageing-resistant, environmentally friendly
Dakota BMW grain brushed leather features: BMW high with the skin, high wear-resistant high non-slip
Ferrari grain head layer leather features: high strength, high elasticity. High wear-resistant breathable
NAPPA leather features: special fine texture, top quality leather, long warranty
Question 8: glossy pants have spandex, spandex, there are other materials, that material is more comfortable, what are the advantages and disadvantages? That material is expensive, the process of drawing Let me tell you:
A viscose (moisture absorption easy to dye): is a man-made cellulose fibers, spun by the solution method of production, due to the core layer of fibers and the outer layer of the solidification rate is inconsistent with the formation of the skin-core structure (from the cross-section slice can be clearly seen). Viscose is the most moisture absorption of ordinary chemical fiber, dyeing is very good, wearing comfort, viscose elasticity is poor, the strength of the wet state, abrasion resistance is very poor, so viscose is not resistant to washing, poor dimensional stability. Specific gravity, heavy fabric, alkali resistance not acid resistance. Viscose fiber has a wide range of uses, almost all types of textiles will use it, such as filament for lining, beautiful silk, flags, ribbons, tire cord, etc.; short fibers for imitation of cotton, imitation of wool, blending, interweaving, etc. Second, polyester (quite not wrinkled): Characteristics: high strength, impact resistance, heat resistance, corrosion resistance, moth resistance, resistance to acid is not alkali resistance, very good resistance to light (second to acrylic), exposure to the sun for 1,000 hours, the strength of the retention of 60-70%, moisture absorption is very poor, difficult to dye, the fabric is easy to wash and fast drying, good shape retention. With the characteristics of the wash can be worn Use: filament: often as a low elasticity silk, the production of a variety of textiles; staple fibers: cotton, wool, hemp, etc. can be blended, industry: tire cord, fishing nets, ropes, filter fabrics, edge of the material, and so on. Is currently the largest amount of chemical fiber. Third, nylon (strong wear-resistant): the biggest advantage is strong wear-resistant, is one of the best. Small density, lightweight fabric, good elasticity, fatigue damage, chemical stability is also very good, alkali and acid resistance! The biggest disadvantage is that the sunlight resistance is not good, the fabric will turn yellow in the sun for a long time, the strength of the decline, moisture absorption is not good, but better than acrylic, polyester. Uses: filament, mostly used in knitting and silk industry; staple fibers, mostly blended with wool or wool chemical fiber, as wadding tweed, vannetin, etc.. Industry: cord and fishing nets, can also be used for carpets, ropes, conveyor belts, screens, etc. Fourth, acrylic (bulky and sun-resistant): acrylic fiber properties are very similar to wool, so called synthetic wool. Molecular structure: Acrylic fiber is very unique in its internal structure, which is irregular spiral conformation, and there is no strict crystallization area, but there is a high order arrangement and low order arrangement. Due to this structure, Acrylic has good thermal elasticity (can be processed as bulky yarn), and the density of Acrylic is small, smaller than that of wool, so the fabric has good warmth. Characteristics: sunlight resistance and weather resistance is very good (in the first place), poor moisture absorption, dyeing is difficult. Pure acrylonitrile fiber, due to the internal structure of the tight, poor performance, so by adding the second, the third monomer, improve its performance, the second monomer to improve: elasticity and feel, the third monomer to improve the dyeing. Uses: mainly for civilian use, can be pure spinning can also be blended, made of a variety of wool, wool, woolen blankets, sportswear can also be: artificial fur, plush, textured yarn, water hose, parasol cloth and so on. Fifth, polyvinyl chloride (water-soluble hygroscopic): the most important feature is moisture absorption, synthetic fibers in the best, known as synthetic cotton. Strength than brocade, polyester poor, good chemical stability, not resistant to strong acids, alkali resistance. Sunlight resistance and weather resistance is also very good, but it is resistant to dry heat but not damp heat (shrinkage) elasticity is the worst, the fabric is easy to wrinkle, poor dyeing, color is not bright. Uses: more and cotton blending: fine cloth, poplin, corduroy, underwear, canvas, tarpaulin, packaging materials, labor clothing and so on. Six, polypropylene (lightweight warmth): polypropylene fiber is a common chemical fiber in the lightest fiber. It almost does not absorb moisture, but has a good core absorption capacity, high strength, made of fabric size stability, wear-resistant elasticity is also good, good chemical stability. But: poor thermal stability, intolerance of sunlight, easy to aging brittle. Uses: can weave socks, mosquito netting cloth, quilt wadding, warm filler, wet diapers, etc.. Industry: carpet, fishing nets, canvas, hose, medical tape instead of cotton gauze, do health supplies. Seven, spandex (elastic fiber): the best elasticity, the worst strength, poor moisture absorption, good light resistance, acid resistance, alkali resistance, abrasion resistance. Uses: Spandex is widely used in underwear, women's underwear, casual wear, sportswear, socks, bandages and other textile fields, medical fields. Spandex is a highly elastic fiber that is essential for high-performance clothing in pursuit of movement and convenience. Spandex is 5-7 times longer than its original form, so it is comfortable to wear, soft to the touch, and does not wrinkle, and always maintains its original silhouette.
I know so you know!
Question 9: What are some of the technologies for drawing in wire these days? Wire is a common form of product, often referred to as wire, thread or rod. As the economy continues to grow, demand and production are booming like never before. In an era of increasing competition, the competitive pressure to produce a product that satisfies the customer at the lowest possible cost has fostered continued advances in wire drawing technology. Although the finest metal wires have reached a few microns and the highest wire strength has exceeded 4000 MPa, we are still facing changing demands and competition from non-metallic materials, so we need more compassionate and better wire drawing technology.
1, the historical review of wire drawing technology
The earliest known metal wire was made by the Egyptians in about 2750 AD to do more than one line. In the archaeology of the Terracotta Warriors and Horses of Qin Shi Huang in Xi'an, China, a large number of copper wires were found to be used in the stone armor coat, which may be the earliest empirical evidence of metal wires in China. From 400-1100 A.D., metal wire technology began to develop in many countries, and began to draw wire by hand or horse-drawn, slowly, and then invented techniques such as winches, swings, ratchets, and the use of gravity.In the 17th century, Europeans began to use water-powered wire-drawing.The invention of the steam engine replaced the human-powered drawing technique, as well as the water-powered wire-drawing, in 1769[1].In the 20th century, the electric motor technology was The promotion of motor technology in the 20th century provided a new impetus for the leap in wire drawing technology.
In 1632, the craftsmen who developed the wire needle discovered by accident that a residual layer of human urine on the wire lubricated the wire, and that lubrication reduced the need for power.
Early attempts were made with stone molds, and later with iron molds. From the Ming Dynasty, Jiangxi Song Yingxing 1637 in Fengyi authored "Tian Gong Kai Wu" in the description made, can be found with iron mold wire drawing: "Where the needle first hammer iron as a thin strip. With an iron ruler a, cone into a line eye, pumping over the strip of iron into a line, inch by inch broken for the needle ...... ". 1970, Xinyu still have old workers in the bench vise hand-pulled wire. Guizhou jewelry artisans now also use hand-pulled silver wire.
The German Wilhelm Albea invented wire rope in 1834, and during the same period he erected telegraph wires in Britain and began to make submarine telegraph wires.
The invention of the electric motor led to the single reel wire drawing machine. In order to improve efficiency and quality, in the single pulling machine to achieve a 2-way, or even 3-way pulling (sliding wire drawing), the use of riding starter and water-cooled technology, mold technology continues to improve. 1993, I visited the United Wire Rope Company in Kansas, still see them in the use of single pulling machine, but a person to open 6, the disk weight of about 1 t, the efficiency is still not low. Inverted vertical single puller and horizontal reel of the wire drawing machine is still used in large numbers, suitable for processing channel less and medium and large size wire products, and it is easy to realize the production of large disc weight.
With the development of AC motors and control technology, the early 20th century invented a continuous drawing machine, reducing labor costs and increasing the speed of drawing. morgan is one of the early major wire drawing machine manufacturers. the late 1930s Marchal Richard Barcro invented the B-B drawing machine ( Double Accumulator Wire), which improved cooling and reduced twisting problems. This equipment was particularly popular with wire rope mills, and by the time the company went out of business in 1976, thousands of these machines were in operation.
The later emergence of the wire drawing machine is the live sleeve type, the late 1970s Germany's KOCH company invented a linear tuned roller SEN-SOR ARM wire drawing machine. The narrow slit cooling technology invented around 1970 provided very favorable conditions for the increase in drawing speed. Improvements in reel design, air-cooling outside the reel, rotary dies, and the use of direct water-cooling are all technologies that have improved the performance of wire drawing machines. horizontal continuous drawing machines have appeared since the 1990's, mainly out of the need to reduce labor intensity and ease of maintenance. When pulling fine wire can be arranged in two rows, reducing the footprint, large-scale has been developed to a diameter of 1 270mm roll
cylinder.
While avoiding twisting of the wire, the linear wire drawing machine has gained excellent coordination between the number of passes and the speed. Faster speeds, better quality, easy to operate and maintain, flexible mold matching, and reduced energy consumption due to advances in electrical technology.
With the development of digital technology, it is possible to monitor a group of wire drawing machines from a single computer.
The dry continuous drawing machine roll diameter is 250-1270mm, DC or AC motor power of 15-160kW. small dry drawing machine working speed reached more than 25m / s, large drawing machine capacity has exceeded 20,000t / a.
Based on the sliding drawing technology of the wet drawing equipment in the non-ferrous metals ...... >>
Question 10: What materials are used for automotive interior leather? The material is mainly divided into several:
Domestic imitation leather features: PU leather material, Jiage pro-people, value for money
Imported microfiber leather features: wear-resistant, cold-resistant, breathable, ageing-resistant, environmentally friendly
Dakota BMW grain brushed leather features: BMW high with the leather, high wear-resistant high anti-slip
Ferrari grain head layer skin features: high strength, high elasticity, high wear-resistant Breathable
NAPPA leather features: special delicate texture, top leather, long warranty
The above mentioned types of leather have their own characteristics, you can choose in the lava car combined with the actual situation.